All vulnerabilities
CVE-2021-22991

F5 BIG-IP Traffic Management Microkernel Buffer Overflow

F5 BIG-IP Traffic Management MicrokernelNetwork & edge
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationExploited in the wildAdded to KEV 18 Jan 2022CISA KEV
Exploit odds (EPSS)61.1%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version yet
Federal deadline1 Feb 2022Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version.

Timeline

  1. 31 Mar 2021, 17:23 UTCPublishedCVE List
  2. 18 Jan 2022Added to CISA KEVCISA KEV

Description

The Traffic Management Microkernel of BIG-IP ASM Risk Engine has a buffer overflow vulnerability, leading to a bypassing of URL-based access controls.

Text from CVE List

Affected versions 1

  • BIG-IPaffected: 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3CVE List

References 3