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Critical9.0F5

Critical [CVE-2021-23038] BIG-IP: On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versions of…

This critical-severity F5 advisory covers CVE-2021-23038 affecting BIG-IP.

CVE-2021-23038 Published Sep 14, 2021Updated by vendor Jun 17, 2026
Affected products & platforms
F5BIG-IP
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Summary

On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versions of 12.1.x, a stored cross-site scripting (XSS) vulnerability exists in an undisclosed page of the BIG-IP Configuration utility that allows an attacker to execute JavaScript in the context of the currently logged-in user.

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected versions
  • 16.0.x
  • 15.1.x
  • 14.1.x
  • 13.1.x
  • all versions

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

Fixed versions
  • 16.0.1.2
  • 15.1.3.1
  • 14.1.4.2
  • 13.1.4.1

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

Mitigation

Upgrade to a fixed release: 16.0.1.2, 15.1.3.1, 14.1.4.2, 13.1.4.1. 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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