ICSA-26-204-01

Vulnerability from csaf_cisa - Published: 2026-07-23 06:00 - Updated: 2026-08-11 06:00
Summary
Johnson Controls C-CURE 9000 and Victor application server (Update A)
Notes
Legal Notice and Terms of Use: This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).
Advisory Summary: Successful exploitation of these vulnerabilities could allow an attacker with network access to achieve remote code execution.
Critical infrastructure sectors: Critical Manufacturing
Countries/areas deployed: Worldwide
Company headquarters location: Ireland
Recommended Practices: CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
Recommended Practices: CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Recommended Practices: CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Recommended Practices: Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.
Recommended Practices: Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
Recommended Practices: CISA also recommends users take the following measures to protect themselves from social engineering attacks:
Recommended Practices: Do not click web links or open attachments in unsolicited email messages.
Recommended Practices: Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
Recommended Practices: Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
Recommended Practices: No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.
CWE-918 - Server-Side Request Forgery (SSRF)
Affected products
Product Identifier Version Remediation
Johnson Controls C-CURE 9000: <=v3.10.1
Johnson Controls / C-CURE 9000
<=v3.10.1
Vendor Fix
Mitigation
Mitigation fix
Johnson Controls victor Application Server: <=v4.10
Johnson Controls / victor Application Server
<=v4.10
Vendor Fix
Mitigation
Mitigation fix
Johnson Controls victor: <=v7.0
Johnson Controls / victor
<=v7.0
Vendor Fix
Vendor Fix
Mitigation
Mitigation fix
CWE-918 - Server-Side Request Forgery (SSRF)
Affected products
Product Identifier Version Remediation
Johnson Controls victor Web: <v7.0
Johnson Controls / victor Web
<v7.0
Mitigation
Mitigation fix
CWE-250 - Execution with Unnecessary Privileges
Affected products
Product Identifier Version Remediation
Johnson Controls victor Web: <=v7.1
Johnson Controls / victor Web
<=v7.1
Mitigation
Mitigation fix
Acknowledgments

{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Harrison Neal"
        ],
        "summary": "reported these vulnerabilities to CISA"
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.cisa.gov/news-events/news/traffic-light-protocol-tlp-definitions-and-usage"
      }
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    "lang": "en-US",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy \u0026 Use policy (https://www.cisa.gov/privacy-policy).",
        "title": "Legal Notice and Terms of Use"
      },
      {
        "category": "summary",
        "text": "Successful exploitation of these vulnerabilities could allow an attacker with network access to achieve remote code execution.",
        "title": "Advisory Summary"
      },
      {
        "category": "other",
        "text": "Critical Manufacturing",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "Ireland",
        "title": "Company headquarters location"
      },
      {
        "category": "general",
        "text": "CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA also recommends users take the following measures to protect themselves from social engineering attacks:",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Do not click web links or open attachments in unsolicited email messages.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.",
        "title": "Recommended Practices"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "central@cisa.dhs.gov",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-26-204-01 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-204-01.json"
      },
      {
        "category": "self",
        "summary": "ICSA Advisory ICSA-26-204-01 - Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-204-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/resources-tools/resources/ics-recommended-practices"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/topics/industrial-control-systems"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/sites/default/files/publications/emailscams0905.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ncas/tips/ST04-014"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/news-events/news/targeted-cyber-intrusion-detection-and-mitigation-strategies-update-b"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/secure-our-world/teach-employees-avoid-phishing"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/news-events/news/avoiding-social-engineering-and-phishing-attacks"
      }
    ],
    "title": "Johnson Controls C-CURE 9000 and Victor application server (Update A)",
    "tracking": {
      "current_release_date": "2026-08-11T06:00:00.000000Z",
      "generator": {
        "date": "2026-08-10T19:54:05.142734Z",
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-26-204-01",
      "initial_release_date": "2026-07-23T06:00:00.000000Z",
      "revision_history": [
        {
          "date": "2026-07-23T06:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "Initial Republication of Johnson Controls Product Security Advisories JCI-PSA-2026-07,  JCI-PSA-2026-13, and JCI-PSA-2026-16."
        },
        {
          "date": "2026-08-11T06:00:00.000000Z",
          "legacy_version": "Update A",
          "number": "2",
          "summary": "Update A - Made changes to affected products and mitigations."
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c=v3.10.1",
                "product": {
                  "name": "Johnson Controls C-CURE 9000: \u003c=v3.10.1",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "C-CURE 9000"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c=v4.10",
                "product": {
                  "name": "Johnson Controls victor Application Server: \u003c=v4.10",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "victor Application Server"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c=v7.0",
                "product": {
                  "name": "Johnson Controls victor: \u003c=v7.0",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "victor"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cv7.0",
                "product": {
                  "name": "Johnson Controls victor Web: \u003cv7.0",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "victor Web"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c=v7.1",
                "product": {
                  "name": "Johnson Controls victor Web: \u003c=v7.1",
                  "product_id": "CSAFPID-0005"
                }
              }
            ],
            "category": "product_name",
            "name": "victor Web"
          }
        ],
        "category": "vendor",
        "name": "Johnson Controls"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-21655",
      "cwe": {
        "id": "CWE-918",
        "name": "Server-Side Request Forgery (SSRF)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Under certain circumstances, successful exploitation of this vulnerability could allow an unauthenticated attacker on an adjacent network to achieve arbitrary code execution on the C-CURE 9000, victor application server and victor, as well as connected clients (e.g., workstations of physical security personnel). Such attack could impact physical security controls.",
          "title": "Vulnerability Summary"
        },
        {
          "category": "details",
          "text": "SSVCv2/E:N/A:Y/2026-08-10T06:00:00.000000Z",
          "title": "SSVC"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "cwe.mitre.org",
          "url": "https://cwe.mitre.org/data/definitions/918.html"
        },
        {
          "category": "external",
          "summary": "www.cve.org",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-21655"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Johnson Controls recommends the following upgrades to address the vulnerable deserialization path: Upgrade to C-CURE 9000 v3.20 or later",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Johnson Controls recommends the following upgrades to address the vulnerable deserialization path: Upgrade victor Application Server to v4.20 or later",
          "product_ids": [
            "CSAFPID-0002",
            "CSAFPID-0003"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Johnson Controls recommends the following upgrades to address the vulnerable deserialization path: Upgrade victor to v8.0 or later",
          "product_ids": [
            "CSAFPID-0003"
          ]
        },
        {
          "category": "mitigation",
          "details": "Johnson Controls recommends the following defensive measures to help reduce the risk of exploitation. Johnson Controls recommends following both steps in the mitigation guidance. However, until an upgrade is completed, the defensive measures outlined will reduce the attack surface: \n Firewall / access control lists - Implement strict firewall rules to block all unnecessary inbound connections to port 8999 from untrusted network segments. \n Intrusion detection / prevention - Deploy IDS/IPS signatures tuned to detect known .NET deserialization exploit payloads (e.g., ysoserial.net patterns) targeting port 8999. \n Application whitelisting - Enforce application whitelisting on application server hosts to prevent unauthorized executables from being launched by the server process. \n Least privilege - Ensure the application server process runs with the minimum privileges necessary, reducing the impact of successful exploitation. \n Monitor and audit - Enable detailed logging on application server hosts and monitor for anomalous process creation by SoftwareHouse.CrossFire.Server.exe. \n Disable unnecessary services - If the ClientConnectionManager_NF.SynchronousServerNotification callback interface is not required, disable or restrict it to reduce attack surface.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003"
          ]
        },
        {
          "category": "mitigation",
          "details": "For more detailed mitigation instructions, please see Johnson Controls Product Security Advisories JCI-PSA-2026-07,  JCI-PSA-2026-13, and JCI-PSA-2026-16 at the following location: https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003"
          ],
          "url": "https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.6,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003"
          ]
        }
      ]
    },
    {
      "cve": "CVE-2026-21653",
      "cwe": {
        "id": "CWE-918",
        "name": "Server-Side Request Forgery (SSRF)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Under certain circumstances, successful exploitation of this vulnerability could allow an attacker to forge server-side HTTP requests from the victor Web application. This could be leveraged to interact with internal services running on the host or accessible on the local network, potentially leading to unauthorized information disclosure or lateral movement within the network.",
          "title": "Vulnerability Summary"
        },
        {
          "category": "details",
          "text": "SSVCv2/E:N/A:Y/2026-08-10T06:00:00.000000Z",
          "title": "SSVC"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0004"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "cwe.mitre.org",
          "url": "https://cwe.mitre.org/data/definitions/918.html"
        },
        {
          "category": "external",
          "summary": "www.cve.org",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-21653"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Johnson Controls recommends the following defensive measures to help reduce the risk of exploitation. Johnson Controls recommends following both steps in the mitigation guidance. However, until an upgrade is completed, the defensive measures outlined will reduce the attack surface: \n Firewall / access control lists - Implement strict firewall rules to block all unnecessary inbound connections to port 8999 from untrusted network segments. \n Intrusion detection / prevention - Deploy IDS/IPS signatures tuned to detect known .NET deserialization exploit payloads (e.g., ysoserial.net patterns) targeting port 8999. \n Application whitelisting - Enforce application whitelisting on application server hosts to prevent unauthorized executables from being launched by the server process. \n Least privilege - Ensure the application server process runs with the minimum privileges necessary, reducing the impact of successful exploitation. \n Monitor and audit - Enable detailed logging on application server hosts and monitor for anomalous process creation by SoftwareHouse.CrossFire.Server.exe. \n Disable unnecessary services - If the ClientConnectionManager_NF.SynchronousServerNotification callback interface is not required, disable or restrict it to reduce attack surface.",
          "product_ids": [
            "CSAFPID-0004"
          ]
        },
        {
          "category": "mitigation",
          "details": "For more detailed mitigation instructions, please see Johnson Controls Product Security Advisories JCI-PSA-2026-07,  JCI-PSA-2026-13, and JCI-PSA-2026-16 at the following location: https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories",
          "product_ids": [
            "CSAFPID-0004"
          ],
          "url": "https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.6,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0004"
          ]
        }
      ]
    },
    {
      "cve": "CVE-2026-34496",
      "cwe": {
        "id": "CWE-250",
        "name": "Execution with Unnecessary Privileges"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Under certain circumstances, successful exploitation of this vulnerability could result in low privilege users accessing unauthorized pages such as Users and Logs. Successful exploitation could allow an attacker to view sensitive system information, user account details, and audit logs beyond their intended access level, potentially enabling further attacks or unauthorized administrative actions.",
          "title": "Vulnerability Summary"
        },
        {
          "category": "details",
          "text": "SSVCv2/E:N/A:Y/2026-08-10T06:00:00.000000Z",
          "title": "SSVC"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0005"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "cwe.mitre.org",
          "url": "https://cwe.mitre.org/data/definitions/250.html"
        },
        {
          "category": "external",
          "summary": "www.cve.org",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-34496"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Johnson Controls recommends the following defensive measures to help reduce the risk of exploitation. Johnson Controls recommends following both steps in the mitigation guidance. However, until an upgrade is completed, the defensive measures outlined will reduce the attack surface: \n Firewall / access control lists - Implement strict firewall rules to block all unnecessary inbound connections to port 8999 from untrusted network segments. \n Intrusion detection / prevention - Deploy IDS/IPS signatures tuned to detect known .NET deserialization exploit payloads (e.g., ysoserial.net patterns) targeting port 8999. \n Application whitelisting - Enforce application whitelisting on application server hosts to prevent unauthorized executables from being launched by the server process. \n Least privilege - Ensure the application server process runs with the minimum privileges necessary, reducing the impact of successful exploitation. \n Monitor and audit - Enable detailed logging on application server hosts and monitor for anomalous process creation by SoftwareHouse.CrossFire.Server.exe. \n Disable unnecessary services - If the ClientConnectionManager_NF.SynchronousServerNotification callback interface is not required, disable or restrict it to reduce attack surface.",
          "product_ids": [
            "CSAFPID-0005"
          ]
        },
        {
          "category": "mitigation",
          "details": "For more detailed mitigation instructions, please see Johnson Controls Product Security Advisories JCI-PSA-2026-07,  JCI-PSA-2026-13, and JCI-PSA-2026-16 at the following location: https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories",
          "product_ids": [
            "CSAFPID-0005"
          ],
          "url": "https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.0,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0005"
          ]
        }
      ]
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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