CVE-2026-94127

F5 BIG-IP APM Heap-based Buffer Overflow Vulnerability

Critique · CVSS 9.3 Exploitée activement (CISA KEV)

Exploitation active confirmée

Ajoutée au catalogue CISA KEV le 22/09/2026, correctif exigé avant le 25/09/2026 pour les agences fédérales américaines.

Action requise : Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Description officielle (NVD)

When a BIG-IP APM access policy and an OAuth profile are configured on a virtual server, specific malicious traffic can lead to remote code execution (RCE). This vulnerability is only present when BIG-IP APM is configured as an OAuth Authorization Server. Deployments using APM strictly as an OAuth Client / Resource Server (without OAuth authorization server profiles configured) are not affected by this vulnerability. Impact: This vulnerability allows an unauthenticated attacker to perform remote code execution. The BIG-IP system in Appliance mode is also vulnerable. This is a data plane issue; there is no control plane exposure. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Preuves de concept publiques (2)

Dépôts tiers non vérifiés, parfois piégés. Ne les exécutez jamais en production : uniquement dans un environnement de test isolé.

En bref

ÉditeurF5
ProduitBIG-IP APM
Publiée le22/09/2026
Modifiée le23/09/2026
CVSS9.3 (v4.0)
EPSS2,23 % (centile 83)
CWECWE-122

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS : probabilité estimée d'exploitation dans les 30 prochains jours.

Produits concernés

f5 · big-ip_access_policy_manager

Sources officielles

NVD (NIST) CVE.org CISA KEV

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