CVE-2026-22548 BIG-IP Advanced WAF and ASM vulnerability
Attackers can cause the bd process to terminate, resulting in denial of service, when specific conditions occur on configured BIG-IP WAF or ASM policies.
- 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-2026-22548?
CVE-2026-22548 is a high-severity vulnerability in F5 Big-Ip Advanced Web Application Firewall, published on 4 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
When a BIG-IP Advanced WAF or ASM security policy is configured on a virtual server, undisclosed requests along with conditions beyond the attacker's control can cause the bd process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Weakness: CWE-362
Which versions are affected by CVE-2026-22548?
It affects 2 products.
Products include F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Application Security Manager.
How do I fix CVE-2026-22548?
No fix has been published for CVE-2026-22548 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-22548 being exploited?
There is no known exploitation of CVE-2026-22548 in the wild and no public exploit code.
Other vulnerabilities in F5 Big-Ip Advanced Web Application Firewall
- CVE-2021-23031 Privilege escalation in BIG-IP Advanced WAF and BIG-IP ASM
- CVE-2021-23029 Server-side request forgery in BIG-IP Advanced WAF and BIG-IP ASM
- CVE-2021-23014 Missing authorization in BIG-IP ASM/Advanced WAF
- CVE-2021-22993 Cross-site scripting in BIG-IP Advanced WAF and BIG-IP ASM
- CVE-2026-40060 BIG-IP Advanced WAF and ASM vulnerability
All F5 Big-Ip Advanced Web Application Firewall vulnerabilities
Sources
Also known as GHSA-7w3c-fcj4-v272.