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Vulnerability record · CVE-2025-61955 · published 15 October 2025

CVE-2025-61955: F5os-a vulnerability

F5 · F5os A

A vulnerability exists in F5OS-A and F5OS-C systems that may allow an authenticated attacker with local access to escalate their privileges.  A successful exploit may allow the attacker to cross a security boundary.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

8.5 CVSS 4.0 High EPSS 0.25% · top 85.8% CWE-95 · CWE-95
8.5CVSS 4.0 base score
0.25%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

A vulnerability exists in F5OS-A and F5OS-C systems that may allow an authenticated attacker with local access to escalate their privileges.  A successful exploit may allow the attacker to cross a security boundary.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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:X/R:

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://my.f5.com/manage/s/article/K000156771 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.2CVE-2025-36546F5os-a incorrect authorization vulnerabilityOn an F5OS system, if the root user had previously configured the system to allow login via SSH key-based authentication, and then enabled Appliance …EPSS 0.42%8.8CVE-2022-41835F5os-a improper privilege management vulnerabilityIn F5OS-A version 1.x before 1.1.0 and F5OS-C version 1.x before 1.5.0, excessive file permissions in F5OS allows an authenticated local attacker to …EPSS 0.15%8.7CVE-2025-46265F5os-a incorrect authorization vulnerabilityOn F5OS, an improper authorization vulnerability exists where remotely authenticated users (LDAP, RADIUS, TACACS+) may be authorized with higher priv…EPSS 0.37%8.5CVE-2025-57780F5os-a execution with unnecessary privileges vulnerabilityA vulnerability exists in F5OS-A and F5OS-C system that may allow an authenticated attacker with local access to escalate their privileges.  A succes…EPSS 0.21%8.3CVE-2025-43878F5os-a vulnerabilityWhen running in Appliance mode, an authenticated attacker assigned the Administrator or Resource Administrator role may be able to bypass Appliance m…EPSS 0.17%7.8CVE-2023-22657F5os-a command injection vulnerabilityOn F5OS-A beginning in version 1.2.0 to before 1.3.0 and F5OS-C beginning in version 1.3.0 to before 1.5.0, processing F5OS tenant file names may all…EPSS 0.44%7.7CVE-2025-59778F5os-c allocation without limits vulnerabilityWhen the Allowed IP Addresses feature is configured on the F5OS-C partition control plane, undisclosed traffic can cause multiple containers to termi…EPSS 0.34%7.5CVE-2002-20001Balasys dheater uncontrolled resource consumption vulnerabilityThe Diffie-Hellman Key Agreement Protocol allows remote attackers (from the client side) to send arbitrary numbers that are actually not public keys,…EPSS 25%

Source: NIST National Vulnerability Database (record CVE-2025-61955), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.