CVE-2021-22991
CVE-2021-22991: 1 tracked advisory record across F5. CISA KEV listed; exploitation observed. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
F5
1 advisory- Advisory severityCritical9.8
Critical [CVE-2021-22991] On BIG-IP versions 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, and 12.1.x…
CVE-2021-22991Source published Source updated
On BIG-IP versions 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, and 12.1.x before 12.1.5.3, undisclosed requests to a virtual server may be incorrectly handled by the Traffic Management Microkernel (TMM) URI normalization, which may trigger a buffer overflow, resulting in a DoS attack. In certain situations, it may theoretically allow bypass of URL based access control or remote code execution (RCE). Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
- Related products — impact not confirmed
- BIG-IP
- Source-reported affected versions
- 16.0.x
- 15.1.x
- 14.1.x
- 13.1.x
1 more entries in the full advisory.
- Source-reported fixed versions
- 16.0.1.1
- 15.1.2.1
- 14.1.4
- 13.1.3.6
1 more entries in the full advisory.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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