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26 vulnerabilities by Cohesity
CVE-2026-28199 (GCVE-0-2026-28199)
Vulnerability from nvd – Published: 2026-09-18 11:19 – Updated: 2026-09-18 14:31
VLAI
EPSS
VEX
Title
Sensitive File Disclosure via Relative Path Traversal in NetBackup Flex OS Shell
Summary
An authenticated user with access to the NetBackup Flex OS management
shell could read arbitrary files from the underlying operating system by
supplying a specially crafted path argument to a diagnostic command.
Successful exploitation could expose sensitive system configuration and
credential material stored on the appliance.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 14:14 UTC
CWE
- CWE-347 - Improper verification of cryptographic signature
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.cvcn.gov.it/cvcn/cve/CVE-2026-28199 | government-resource |
| https://github.com/cohesity/SecAdvisory/blob/mast… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cohesity | NetBackup Flex OS |
Affected:
0 , < 6.4
(custom)
|
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CVE-2026-28198 (GCVE-0-2026-28198)
Vulnerability from nvd – Published: 2026-09-18 11:12 – Updated: 2026-09-18 14:31
VLAI
EPSS
VEX
Title
Privilege Escalation via Cryptographic Signature Verification Bypass in NetBackup Flex OS Shell
Summary
An authenticated, low-privileged user with access to the NetBackup Flex
OS management shell could bypass the cryptographic signature
verification step of a privileged support command by supplying a
specially formed access credential. Successful exploitation grants the
attacker an unrestricted root shell with full control over the Flex
appliance host and all hosted containers, completely compromising
confidentiality, integrity, and availability.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 14:14 UTC
CWE
- CWE-347 - Improper verification of cryptographic signature
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.cvcn.gov.it/cvcn/cve/CVE-2026-28198 | government-resource |
| https://github.com/cohesity/SecAdvisory/blob/mast… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cohesity | NetBackup Flex OS |
Affected:
0 , < 6.4
(custom)
|
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CVE-2026-28197 (GCVE-0-2026-28197)
Vulnerability from nvd – Published: 2026-09-18 11:07 – Updated: 2026-09-18 14:31
VLAI
EPSS
VEX
Title
Privilege Escalation via Argument Injection in NetBackup Flex OS Shell
Summary
An authenticated, low-privileged user with access to the NetBackup Flex
OS management shell could supply a specially crafted input to a
privileged administrative command, causing it to execute arbitrary code
with root-level permissions. Successful exploitation grants the attacker
unrestricted control over the Flex appliance host and all hosted
containers, fully compromising confidentiality, integrity, and
availability.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 14:14 UTC
CWE
- CWE-88 - Improper neutralization of argument delimiters in a command ('argument injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.cvcn.gov.it/cvcn/cve/CVE-2026-28197 | government-resource |
| https://github.com/cohesity/SecAdvisory/blob/mast… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cohesity | NetBackup Flex OS |
Affected:
0 , < 6.4
(custom)
|
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CVE-2025-67840 (GCVE-0-2025-67840)
Vulnerability from nvd – Published: 2026-03-03 00:00 – Updated: 2026-03-03 19:59
VLAI
EPSS
VEX
Summary
Multiple authenticated OS command injection vulnerabilities exist in the Cohesity (formerly Stone Ram) TranZman 4.0 Build 14614 through TZM_1757588060_SEP2025_FULL.depot web application API endpoints (including Scheduler and Actions pages). The appliance directly concatenates user-controlled parameters into system commands without sufficient sanitisation, allowing an authenticated admin user to inject and execute arbitrary OS commands with root privileges. An attacker can intercept legitimate requests (e.g. during job creation or execution) using a proxy and modify parameters to include shell metacharacters, achieving remote code execution on the appliance. This completely bypasses the intended CLISH restricted shell confinement and results in full system compromise. The vulnerabilities persist in Release 4.0 Build 14614 including the latest patch (as of the time of testing) TZM_1757588060_SEP2025_FULL.depot.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-03 19:58 UTC
CWE
- n/a
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
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CVE-2025-63912 (GCVE-0-2025-63912)
Vulnerability from nvd – Published: 2026-03-03 00:00 – Updated: 2026-05-10 12:57
VLAI
EPSS
VEX
Summary
Cohesity TranZman Migration Appliance Release 4.0 Build 14614 was discovered to use a weak cryptography algorithm for data encryption, allowing attackers to trivially reverse the encyption and expose credentials.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-03 20:02 UTC
CWE
- n/a
- CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
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CVE-2025-63911 (GCVE-0-2025-63911)
Vulnerability from nvd – Published: 2026-03-03 00:00 – Updated: 2026-03-03 20:00
VLAI
EPSS
VEX
Summary
Cohesity TranZman Migration Appliance Release 4.0 Build 14614 was discovered to contain an authenticated command injection vulnerability.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-03 20:00 UTC
CWE
- n/a
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
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CVE-2025-63910 (GCVE-0-2025-63910)
Vulnerability from nvd – Published: 2026-03-03 00:00 – Updated: 2026-03-03 20:02
VLAI
EPSS
VEX
Summary
An authenticated arbitrary file upload vulnerability in Cohesity TranZman Migration Appliance Release 4.0 Build 14614 allows attackers with Administrator privileges to execute arbitrary code via uploading a crafted patch file.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-03 20:02 UTC
CWE
- n/a
- CWE-345 - Insufficient Verification of Data Authenticity
Assigner
References
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CVE-2025-63909 (GCVE-0-2025-63909)
Vulnerability from nvd – Published: 2026-03-03 00:00 – Updated: 2026-03-03 20:01
VLAI
EPSS
VEX
Summary
Incorrect access control in the component /opt/SRLtzm/bin/TapeDumper of Cohesity TranZman Migration Appliance Release 4.0 Build 14614 allows attackers to escalate privileges to root and read and write arbitrary files.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-03 20:00 UTC
CWE
- n/a
- CWE-269 - Improper Privilege Management
Assigner
References
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CVE-2023-33295 (GCVE-0-2023-33295)
Vulnerability from nvd – Published: 2024-01-19 00:00 – Updated: 2025-06-17 15:25
VLAI
EPSS
VEX
Summary
Cohesity DataProtect prior to 6.8.1_u5 or 7.1 was discovered to have a incorrect access control vulnerability due to a lack of TLS Certificate Validation.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-13 18:47 UTC
CWE
- n/a
- CWE-295 - Improper Certificate Validation
Assigner
References
2 references
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CVE-2021-36795 (GCVE-0-2021-36795)
Vulnerability from nvd – Published: 2021-08-06 16:58 – Updated: 2024-08-04 01:01
VLAI
EPSS
VEX
Summary
A permission issue in the Cohesity Linux agent may allow privilege escalation in version 6.5.1b to 6.5.1d-hotfix10, 6.6.0a to 6.6.0b-hotfix1. An underprivileged linux user, if certain environment criteria are met, can gain additional privileges.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/cohesity/SecAdvisory/blob/mast… | x_refsource_MISC |
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CVE-2021-28124 (GCVE-0-2021-28124)
Vulnerability from nvd – Published: 2021-04-02 14:50 – Updated: 2024-08-03 21:33
VLAI
EPSS
VEX
Summary
A man-in-the-middle vulnerability in Cohesity DataPlatform support channel in version 6.3 up to 6.3.1g, 6.4 up to 6.4.1c and 6.5.1 through 6.5.1b. Missing server authentication in impacted versions can allow an attacker to Man-in-the-middle (MITM) support channel UI session to Cohesity DataPlatform cluster.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
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Date Public
2021-03-31 00:00
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CVE-2021-28123 (GCVE-0-2021-28123)
Vulnerability from nvd – Published: 2021-04-02 14:46 – Updated: 2024-08-03 21:33
VLAI
EPSS
VEX
Summary
Undocumented Default Cryptographic Key Vulnerability in Cohesity DataPlatform version 6.3 prior 6.3.1g, 6.4 up to 6.4.1c and 6.5.1 through 6.5.1b. The ssh key can provide an attacker access to the linux system in the affected version.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/cohesity/SecAdvisory/blob/mast… | x_refsource_CONFIRM |
Date Public
2021-03-31 00:00
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CVE-2019-11242 (GCVE-0-2019-11242)
Vulnerability from nvd – Published: 2019-07-12 19:04 – Updated: 2024-08-04 22:48
VLAI
EPSS
VEX
Summary
A man-in-the-middle vulnerability related to vCenter access was found in Cohesity DataPlatform version 5.x and 6.x prior to 6.1.1c. Cohesity clusters did not verify TLS certificates presented by vCenter. This vulnerability could expose Cohesity user credentials configured to access vCenter.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/cohesity/SecAdvisory/blob/mast… | x_refsource_CONFIRM |
Date Public
2019-07-02 00:00
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CVE-2026-28199 (GCVE-0-2026-28199)
Vulnerability from cvelistv5 – Published: 2026-09-18 11:19 – Updated: 2026-09-18 14:31
VLAI
EPSS
VEX
Title
Sensitive File Disclosure via Relative Path Traversal in NetBackup Flex OS Shell
Summary
An authenticated user with access to the NetBackup Flex OS management
shell could read arbitrary files from the underlying operating system by
supplying a specially crafted path argument to a diagnostic command.
Successful exploitation could expose sensitive system configuration and
credential material stored on the appliance.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 14:14 UTC
CWE
- CWE-347 - Improper verification of cryptographic signature
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.cvcn.gov.it/cvcn/cve/CVE-2026-28199 | government-resource |
| https://github.com/cohesity/SecAdvisory/blob/mast… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cohesity | NetBackup Flex OS |
Affected:
0 , < 6.4
(custom)
|
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CVE-2026-28198 (GCVE-0-2026-28198)
Vulnerability from cvelistv5 – Published: 2026-09-18 11:12 – Updated: 2026-09-18 14:31
VLAI
EPSS
VEX
Title
Privilege Escalation via Cryptographic Signature Verification Bypass in NetBackup Flex OS Shell
Summary
An authenticated, low-privileged user with access to the NetBackup Flex
OS management shell could bypass the cryptographic signature
verification step of a privileged support command by supplying a
specially formed access credential. Successful exploitation grants the
attacker an unrestricted root shell with full control over the Flex
appliance host and all hosted containers, completely compromising
confidentiality, integrity, and availability.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 14:14 UTC
CWE
- CWE-347 - Improper verification of cryptographic signature
Assigner
References
2 references
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|---|---|
| https://www.cvcn.gov.it/cvcn/cve/CVE-2026-28198 | government-resource |
| https://github.com/cohesity/SecAdvisory/blob/mast… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
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| Cohesity | NetBackup Flex OS |
Affected:
0 , < 6.4
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CVE-2026-28197 (GCVE-0-2026-28197)
Vulnerability from cvelistv5 – Published: 2026-09-18 11:07 – Updated: 2026-09-18 14:31
VLAI
EPSS
VEX
Title
Privilege Escalation via Argument Injection in NetBackup Flex OS Shell
Summary
An authenticated, low-privileged user with access to the NetBackup Flex
OS management shell could supply a specially crafted input to a
privileged administrative command, causing it to execute arbitrary code
with root-level permissions. Successful exploitation grants the attacker
unrestricted control over the Flex appliance host and all hosted
containers, fully compromising confidentiality, integrity, and
availability.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 14:14 UTC
CWE
- CWE-88 - Improper neutralization of argument delimiters in a command ('argument injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.cvcn.gov.it/cvcn/cve/CVE-2026-28197 | government-resource |
| https://github.com/cohesity/SecAdvisory/blob/mast… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cohesity | NetBackup Flex OS |
Affected:
0 , < 6.4
(custom)
|
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CVE-2025-63911 (GCVE-0-2025-63911)
Vulnerability from cvelistv5 – Published: 2026-03-03 00:00 – Updated: 2026-03-03 20:00
VLAI
EPSS
VEX
Summary
Cohesity TranZman Migration Appliance Release 4.0 Build 14614 was discovered to contain an authenticated command injection vulnerability.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-03 20:00 UTC
CWE
- n/a
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
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CVE-2025-63909 (GCVE-0-2025-63909)
Vulnerability from cvelistv5 – Published: 2026-03-03 00:00 – Updated: 2026-03-03 20:01
VLAI
EPSS
VEX
Summary
Incorrect access control in the component /opt/SRLtzm/bin/TapeDumper of Cohesity TranZman Migration Appliance Release 4.0 Build 14614 allows attackers to escalate privileges to root and read and write arbitrary files.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-03 20:00 UTC
CWE
- n/a
- CWE-269 - Improper Privilege Management
Assigner
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CVE-2025-63910 (GCVE-0-2025-63910)
Vulnerability from cvelistv5 – Published: 2026-03-03 00:00 – Updated: 2026-03-03 20:02
VLAI
EPSS
VEX
Summary
An authenticated arbitrary file upload vulnerability in Cohesity TranZman Migration Appliance Release 4.0 Build 14614 allows attackers with Administrator privileges to execute arbitrary code via uploading a crafted patch file.
Severity
7.2 (High)
SSVC
Exploitation: none
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Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-03 20:02 UTC
CWE
- n/a
- CWE-345 - Insufficient Verification of Data Authenticity
Assigner
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CVE-2025-67840 (GCVE-0-2025-67840)
Vulnerability from cvelistv5 – Published: 2026-03-03 00:00 – Updated: 2026-03-03 19:59
VLAI
EPSS
VEX
Summary
Multiple authenticated OS command injection vulnerabilities exist in the Cohesity (formerly Stone Ram) TranZman 4.0 Build 14614 through TZM_1757588060_SEP2025_FULL.depot web application API endpoints (including Scheduler and Actions pages). The appliance directly concatenates user-controlled parameters into system commands without sufficient sanitisation, allowing an authenticated admin user to inject and execute arbitrary OS commands with root privileges. An attacker can intercept legitimate requests (e.g. during job creation or execution) using a proxy and modify parameters to include shell metacharacters, achieving remote code execution on the appliance. This completely bypasses the intended CLISH restricted shell confinement and results in full system compromise. The vulnerabilities persist in Release 4.0 Build 14614 including the latest patch (as of the time of testing) TZM_1757588060_SEP2025_FULL.depot.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-03 19:58 UTC
CWE
- n/a
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
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CVE-2025-63912 (GCVE-0-2025-63912)
Vulnerability from cvelistv5 – Published: 2026-03-03 00:00 – Updated: 2026-05-10 12:57
VLAI
EPSS
VEX
Summary
Cohesity TranZman Migration Appliance Release 4.0 Build 14614 was discovered to use a weak cryptography algorithm for data encryption, allowing attackers to trivially reverse the encyption and expose credentials.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-03 20:02 UTC
CWE
- n/a
- CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
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CVE-2023-33295 (GCVE-0-2023-33295)
Vulnerability from cvelistv5 – Published: 2024-01-19 00:00 – Updated: 2025-06-17 15:25
VLAI
EPSS
VEX
Summary
Cohesity DataProtect prior to 6.8.1_u5 or 7.1 was discovered to have a incorrect access control vulnerability due to a lack of TLS Certificate Validation.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-13 18:47 UTC
CWE
- n/a
- CWE-295 - Improper Certificate Validation
Assigner
References
2 references
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CVE-2021-36795 (GCVE-0-2021-36795)
Vulnerability from cvelistv5 – Published: 2021-08-06 16:58 – Updated: 2024-08-04 01:01
VLAI
EPSS
VEX
Summary
A permission issue in the Cohesity Linux agent may allow privilege escalation in version 6.5.1b to 6.5.1d-hotfix10, 6.6.0a to 6.6.0b-hotfix1. An underprivileged linux user, if certain environment criteria are met, can gain additional privileges.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/cohesity/SecAdvisory/blob/mast… | x_refsource_MISC |
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CVE-2021-28124 (GCVE-0-2021-28124)
Vulnerability from cvelistv5 – Published: 2021-04-02 14:50 – Updated: 2024-08-03 21:33
VLAI
EPSS
VEX
Summary
A man-in-the-middle vulnerability in Cohesity DataPlatform support channel in version 6.3 up to 6.3.1g, 6.4 up to 6.4.1c and 6.5.1 through 6.5.1b. Missing server authentication in impacted versions can allow an attacker to Man-in-the-middle (MITM) support channel UI session to Cohesity DataPlatform cluster.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/cohesity/SecAdvisory/blob/mast… | x_refsource_CONFIRM |
Date Public
2021-03-31 00:00
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CVE-2021-28123 (GCVE-0-2021-28123)
Vulnerability from cvelistv5 – Published: 2021-04-02 14:46 – Updated: 2024-08-03 21:33
VLAI
EPSS
VEX
Summary
Undocumented Default Cryptographic Key Vulnerability in Cohesity DataPlatform version 6.3 prior 6.3.1g, 6.4 up to 6.4.1c and 6.5.1 through 6.5.1b. The ssh key can provide an attacker access to the linux system in the affected version.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/cohesity/SecAdvisory/blob/mast… | x_refsource_CONFIRM |
Date Public
2021-03-31 00:00
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CVE-2019-11242 (GCVE-0-2019-11242)
Vulnerability from cvelistv5 – Published: 2019-07-12 19:04 – Updated: 2024-08-04 22:48
VLAI
EPSS
VEX
Summary
A man-in-the-middle vulnerability related to vCenter access was found in Cohesity DataPlatform version 5.x and 6.x prior to 6.1.1c. Cohesity clusters did not verify TLS certificates presented by vCenter. This vulnerability could expose Cohesity user credentials configured to access vCenter.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/cohesity/SecAdvisory/blob/mast… | x_refsource_CONFIRM |
Date Public
2019-07-02 00:00
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