CVE-2026-41218
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
When BIG-IP PEM iRules are configured on a virtual server (iRules using commands starting with CLASSIFICATION::, CLASSIFY::, PEM::, PSC::, and the urlcatquery command), 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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| F5 | BIG-IP | 21.1.0 < * | unaffected |
| F5 | BIG-IP | 21.0.0 < 21.0.0.1 | affected |
| F5 | BIG-IP | 17.5.0 < 17.5.1.4 | affected |
| F5 | BIG-IP | 17.1.0 < 17.1.3.1 | affected |
| F5 | BIG-IP | 16.1.0 < * | affected |
Weaknesses
- CWE-416: CWE-416: Use After Free
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
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