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TI-2025-35100 Aliases CVE-2025-55669GHSA-5r25-m2h9-w299

BIG-IP HTTP/2 vulnerability

Priority MEDIUM 44CWE-672Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

When the BIG-IP Advanced WAF and ASM security policy and a server-side HTTP/2 profile are configured on a virtual server, undisclosed traffic 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 0.00384 32nd percentileScored 2026-11-07
Fix Fixed BIG-IP (F5): 17.5.0, 17.1.2.2, 16.1.6 +1

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

VendorProductAffected versionsFixed inStatusSource
F5BIG-IP17.1.0 to before 17.1.2.2; 16.1.0 to before 16.1.617.5.0, 17.1.2.2, 16.1.6, 15.1.0Patch availableCNA
  • BIG-IP VendorF5 Affected 17.1.0 to before 17.1.2.2; 16.1.0 to before 16.1.6 Fixed in 17.5.0, 17.1.2.2, 16.1.6, 15.1.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*16.1.0 to before 16.1.6; 17.1.0 – 17.1.2VulnerableF5
  • cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* Versions 16.1.0 to before 16.1.6; 17.1.0 – 17.1.2 Vulnerable ·F5

Remediation

  • Fix · CNA BIG-IP (F5) Fixed in 17.5.0, 17.1.2.2, 16.1.6, 15.1.0

Fixed in the same release

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

  • Release ·

    F5 BIG-IP 16.1.6, 17.1.2.2

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-55669
  2. 2026-10-03 Alias added: GHSA-5r25-m2h9-w299

References

Advisory 1

  • 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 580 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences