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Critical9.8F5 Exploited CISA KEV

Critical [CVE-2022-1388] On F5 BIG-IP 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, 13.1.x…

This critical-severity F5 advisory covers CVE-2022-1388 affecting BIG-IP.

CVE-2022-1388 Published May 5, 2022Updated by vendor Jun 17, 2026
Affected products & platforms
F5BIG-IP
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Summary

On F5 BIG-IP 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, 13.1.x versions prior to 13.1.5, and all 12.1.x and 11.6.x versions, undisclosed requests may bypass iControl REST authentication. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

CISA Known Exploited Vulnerability

Listed:
May 10, 2022 · federal remediation due May 31, 2022
Required action:
Apply updates per vendor instructions.
Ransomware use:
Known

KEV is a prioritization signal from CISA — remediation detail still comes from the vendor advisory.

Affected versions
  • 16.1
  • 16.1.2.2
  • 15.1
  • 15.1.5.1
  • 14.1
  • 14.1.4.6
  • 13.1
  • 13.1.5
  • 12.1
  • 11.6

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions
  • 16.1.2.2
  • 15.1.5.1
  • 14.1.4.6
  • 13.1.5

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation

Upgrade to a fixed release: 16.1.2.2, 15.1.5.1, 14.1.4.6, 13.1.5. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Discussion(0)

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