SB2026051451 - Remote denial of service in BIG-IP products TMM module
Published: May 14, 2026
Security Bulletin ID
SB2026051451
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Stack-based buffer overflow (CVE-ID: CVE-2026-41956)
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to stack-based buffer overflow in the Traffic Management Microkernel (TMM) classification handling on a UDP virtual server when processing undisclosed requests. A remote attacker can send crafted requests to cause a denial of service.
Only the data plane is exposed; there is no control plane exposure. Exploitation requires a classification profile to be configured on a UDP virtual server.
Remediation
Install update from vendor's website.