Vulnerability · Published Oct 15, 2025 · Assigned by f5
CVE-2025-61955F5OS vulnerability
High 8.8
In plain English
A high-severity security flaw in F5OS - Appliance from F5. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.3%top 83.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| F5 | F5OS - Appliance | 1.8.0 – before 1.8.31.5.0 – before 1.5.4 |
| F5 | F5OS - Chassis | 1.8.0 – before 1.8.21.6.0 – before 1.6.4 |
Weakness: CWE-95 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
References
- https://my.f5.com/manage/s/article/K000156771 vendor-advisory