CVE-2026-2507 BIG-IP TMM Vulnerability
Attackers can cause a denial of service by triggering a null dereference in TMM when AFM or DDoS protection is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-2507?
CVE-2026-2507 is a high-severity vulnerability in F5 BIG-IP, published on 18 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
When BIG-IP AFM or BIG-IP DDoS is provisioned, undisclosed traffic can cause TMM to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Weakness: CWE-476
Which versions are affected by CVE-2026-2507?
How do I fix CVE-2026-2507?
No fix has been published for CVE-2026-2507 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-2507 being exploited?
There is no known exploitation of CVE-2026-2507 in the wild and no public exploit code.
Sources
Also known as GHSA-chpq-fr33-gp2m.