CVE-2026-39458
CVE-2026-39458: 1 tracked advisory record across F5. 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 severityHigh8.7
High [CVE-2026-39458] When a BIG-IP is configured with DNS caching (Such as a DNS profile with caching enabled, SSL Orchestrator, Advanced WAF DoS protection), undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate
CVE-2026-39458Source published Source updated
When a BIG-IP is configured with DNS caching (Such as a DNS profile with caching enabled, SSL Orchestrator, Advanced WAF DoS protection), undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- Affected products in this advisory
- BIG-IP
- Source-reported affected versions
- BIG-IP 21.0.0 before 21.0.0.1
- BIG-IP 17.5.0 before 17.5.1.6
- BIG-IP 17.1.0 before 17.1.3.2
- BIG-IP 16.1.0
- Source-reported fixed versions
- 21.0.0.1
- 17.5.1.6
- 17.1.3.2
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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