Vulnerability-Lookup

GHSA-W7W4-RH54-5RF6

Vulnerability from github – Published: 2026-04-10 00:30 – Updated: 2026-04-10 00:30

Details

When a specific 'show chassis' CLI command is executed, chassisd crashes and restarts which causes a momentary impact to all traffic until all modules are online again.

This issue affects Junos OS on SRX1500, SRX4100, SRX4200 and SRX4600:

23.2 versions before 23.2R2-S6,
23.4 versions before 23.4R2-S7
24.2 versions before 24.2R2-S2,
24.4 versions before 24.4R2,
25.2 versions before 25.2R1-S1, 25.2R2.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

6.8 (Medium)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/RE:M

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{
  "affected": [],
  "aliases": [
    "CVE-2026-33787"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-754"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-09T22:16:28Z",
    "severity": "MODERATE"
  },
  "details": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the chassis control daemon (chassisd) of Juniper Networks Junos OS on SRX1500, SRX4100, SRX4200 and SRX4600 allows a local attacker with low privileges to cause a complete Denial of Service (DoS).\n\nWhen a specific \u0027show chassis\u0027 CLI command is executed, chassisd crashes and restarts which causes a momentary impact to all traffic until all modules are online again.\n\n\n\nThis issue affects Junos OS on SRX1500, SRX4100, SRX4200 and SRX4600:\u00a0\n\n\n\n  *  23.2 versions before\u00a023.2R2-S6,\n  *  23.4 versions before\u00a023.4R2-S7\n  *  24.2 versions before 24.2R2-S2,\n  *  24.4 versions before 24.4R2,\n  *  25.2 versions before 25.2R1-S1, 25.2R2.",
  "id": "GHSA-w7w4-rh54-5rf6",
  "modified": "2026-04-10T00:30:29Z",
  "published": "2026-04-10T00:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33787"
    },
    {
      "type": "WEB",
      "url": "https://kb.juniper.net/JSA107873"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:M/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-33787 (GCVE-0-2026-33787)

Vulnerability from cvelistv5 – Published: 2026-04-09 21:37 – Updated: 2026-04-13 18:06

Title

Junos OS: SRX1500, SRX4100, SRX4200, SRX4600: When a specific show command is executed chassisd crashes

Summary

An Improper Check for Unusual or Exceptional Conditions vulnerability in the chassis control daemon (chassisd) of Juniper Networks Junos OS on SRX1500, SRX4100, SRX4200 and SRX4600 allows a local attacker with low privileges to cause a complete Denial of Service (DoS). When a specific 'show chassis' CLI command is executed, chassisd crashes and restarts which causes a momentary impact to all traffic until all modules are online again. This issue affects Junos OS on SRX1500, SRX4100, SRX4200 and SRX4600: * 23.2 versions before 23.2R2-S6, * 23.4 versions before 23.4R2-S7 * 24.2 versions before 24.2R2-S2, * 24.4 versions before 24.4R2, * 25.2 versions before 25.2R1-S1, 25.2R2.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

6.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/RE:M

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-13 17:50 UTC

CWE

CWE-754 - Improper Check for Unusual or Exceptional Conditions

Assigner

juniper mitre root Scorecard

References

1 reference

URL	Tags
https://kb.juniper.net/JSA107873	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
Juniper Networks	Junos OS	Affected: 0 , < 23.2R2-S6 (semver) Affected: 23.4 , < 23.4R2-S7 (semver) Affected: 24.2 , < 24.2R2-S2 (semver) Affected: 24.4 , < 24.4R2 (semver) Affected: 25.2 , < 25.2R1-S1, 25.2R2 (semver)

Date Public

2026-04-08 16:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-W7W4-RH54-5RF6

CVE-2026-33787 (GCVE-0-2026-33787)

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