Is CVE-2025-61955 in the CISA KEV catalog?

No. CVE-2025-61955 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-61955?

CVE-2025-61955 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2025-61955?

CVE-2025-61955 has an EPSS score of 0.22% (13th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-61955?

Upgrade f5os-a to 1.5.4 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2025-61955

HIGH

8.8

CVSS v3

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.

CWE-95

How to fix

Remediation Available

f5os-aNVD

Affected:>= 1.5.1, < 1.5.4Fixed in:1.5.4CVE-2025-61955derived from NVD

f5os-cNVD

Affected:>= 1.8.0, < 1.8.2Fixed in:1.8.2CVE-2025-61955derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.22%probability of exploitation in 30 days

13thpercentile

Low risk: more likely to be exploited than 13% of all known CVEs.

References

Vendor Advisory1

my.f5.com

Related Vulnerabilities

Other CWE-95 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-24893	Critical	9.8	100%	KEV	Fix
CVE-2024-36401	Critical	9.8	100%	KEV	Fix
CVE-2026-33017	Critical	9.8	98%	KEV	Fix
CVE-2024-21650	Critical	10.0	93%	-	-
CVE-2023-37462	Critical	9.9	91%	-	Fix
CVE-2024-7954	Critical	9.8	90%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-21.