Introduction to Malware Binary Triage (IMBT) Course
Looking to level up your skills? Get 10% off using coupon code: MWNEWS10 for any flavor.
Enroll Now and Save 10%: Coupon Code MWNEWS10
Note: Affiliate link – your enrollment helps support this platform at no extra cost to you.
Key Takeaways
- CVE-2026-94127 is an unauthenticated heap buffer overflow in F5 BIG-IP APM enabling remote code execution.
- The OAuth UserInfo handler allocates 0x4100 bytes but copies an attacker-controlled Authorization header without enforcing that limit.
- The overflow corrupts a neighboring callback pointer, enabling a stack pivot and a return-oriented programming chain.
- The chain appends a command to tmm.finish, which Bash runs after TMM crashes, bypassing SELinux restrictions.
- The Picus Platform lets teams simulate CVE-2026-94127 attacks to validate security controls against the exploitation.
CVE-2026-94127 is a heap-based buffer overflow in F5 BIG-IP Access Policy Manager (APM) that allows unauthenticated remote code execution. Exploitation requires network access to a virtual server configured with an APM access policy and an OAuth profile, with APM operating as an OAuth Authorization Server.
Article Link: CVE-2026-94127 Explained: F5 BIG-IP APM Heap Overflow Attack