CVE-2026-94127

F5 BIG-IP APM Heap-based Buffer Overflow Vulnerability

Added to CISA KEV: 2026-09-22

By FixTheVuln Team Sources: CISA KEV Catalog, NVD
CVSS 9.8 — CRITICAL ACTIVE
CWE-787

Description

F5 BIG-IP APM contains a heap-based buffer overflow vulnerability when access policy and an OAuth profile are...

Required Action

Fix: 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.

References

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Frequently Asked Questions

What is CVE-2026-94127?

CVE-2026-94127 (F5 BIG-IP APM Heap-based Buffer Overflow Vulnerability) is a vulnerability with a CVSS score of 9.8 (CRITICAL). F5 BIG-IP APM contains a heap-based buffer overflow vulnerability when access policy and an OAuth profile are...

How do I fix CVE-2026-94127?

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.

How severe is CVE-2026-94127?

CVE-2026-94127 has a CVSS score of 9.8, classified as CRITICAL. This vulnerability is in the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been actively exploited in the wild.

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