TI-2025-24618 Aliases CVE-2025-35995 GHSA-27mv-c3gh-hv8r

BIG-IP PEM vulnerability

MEDIUM 44CWE-125Published 2025-05-07 · Updated 2025-05-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

When a BIG-IP PEM system is licensed with URL categorization, and the URL categorization policy or an iRule with the urlcat command is enabled on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00445 38th percentileScored 2026-11-07

Fix Fixed BIG-IP (F5): 17.5.0, 17.1.2.2, 16.1.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
F5	BIG-IP	17.1.0 to before 17.1.2.2; 16.1.0 to before 16.1.6; 15.1.0 and later	17.5.0, 17.1.2.2, 16.1.6	Patch available	CNA

BIG-IP VendorF5 Affected 17.1.0 to before 17.1.2.2; 16.1.0 to before 16.1.6; 15.1.0 and later Fixed in 17.5.0, 17.1.2.2, 16.1.6 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:f5:big-ip_policy_enforcement_manager::::::::	15.1.0 to before 15.1.10.7.0.4.5; 16.1.0 to before 16.1.6; 17.1.0 to before 17.1.2.2	Vulnerable	F5

cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* Versions 15.1.0 to before 15.1.10.7.0.4.5; 16.1.0 to before 16.1.6; 17.1.0 to before 17.1.2.2 Vulnerable ·F5

Remediation

Fix · CNA BIG-IP (F5) Fixed in 17.5.0, 17.1.2.2, 16.1.6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2025-05-07
F5 BIG-IP 16.1.6, 17.1.2.2
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2025-24863 BIG-IP APM PingAccess Virtual Server VulnerabilityPriority MEDIUM 44
Show all 2 records →

Timeline

2026-10-02 Threatist record created from CVE-2025-35995
2026-10-03 Alias added: GHSA-27mv-c3gh-hv8r

References

Advisory 1

https://my.f5.com/manage/s/article/K000149952

TI-2023-25230 BIG-IP Configuration utility unauthenticated remote code execution vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2022-01269 Missing authentication in F5 BIG-IP KEVCVSS 3.1CRITICAL 9.8
TI-2021-05850 Memory corruption in BIG-IP KEVCVSS 3.1CRITICAL 9.8
TI-2021-05845 Server-side request forgery in BIG-IP; BIG-IQ KEVCVSS 3.1CRITICAL 9.8
TI-2020-04820 Path traversal in BIG-IP KEVCVSS 3.1CRITICAL 9.8
TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8

See all 532 →

Sources

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