CVE-2021-22991 · netVigilance record NV22-0022
F5 BIG-IP Traffic Management Microkernel Buffer Overflow
past due
What to do
Apply updates per vendor instructions.
CISA deadline 2022-02-01 · passed 4 years 7 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
The Traffic Management Microkernel of BIG-IP ASM Risk Engine has a buffer overflow vulnerability, leading to a bypassing of URL-based access controls.
Who is affected
F5 BIG-IP Traffic Management Microkernel. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-119.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 4 years 7 months ago
Sources
- NVD entry for CVE-2021-22991 nvd.nist.gov/vuln/detail/CVE-2021-22991
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2021-22991