CVE-2025-61955: f5os-a Code Injection — Fix

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.

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CVSS v3.1 Score

8.8

HIGH

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

Weakness Type (CWE)

CWE-95 CWE-95

Affected Products

Vendor	Product	Versions
f5	f5os-a	1.5.1 — 1.5.4
f5	f5os-a	All
f5	f5os-c	1.6.0 — 1.6.2
f5	f5os-c	1.8.0 — 1.8.2

References

Advisories & Patches

https://my.f5.com/manage/s/article/K000156771

Frequently Asked Questions

What is CVE-2025-61955? +

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. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-61955? +

CVE-2025-61955 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-61955? +

CVE-2025-61955 affects products from f5, specifically: f5os-a, f5os-c. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-61955? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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