SB2026051446 - Remote denial of service in BIG-IP SIP profile
Published: May 14, 2026
Security Bulletin ID
SB2026051446
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) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2026-40423)
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to allocation of resources without limits or throttling in the SIP profile on a virtual server when processing traffic. A remote attacker can send undisclosed traffic to cause a denial of service.
There is no control plane exposure; this is a data plane issue only.
Remediation
Install update from vendor's website.