CVE-2026-94127: Critical Unauthenticated RCE in F5 BIG-IP APM


On September 22, 2026, F5 published a security advisory for CVE-2026-94127, a critical heap-based buffer overflow vulnerability affecting F5 BIG-IP Access Policy Manager (APM). The vulnerability has a CVSS v3.1 score of 9.8. An unauthenticated attacker with network access to an affected virtual server may be able to achieve remote code execution (RCE) by sending specifically crafted traffic.

BIG-IP APM provides identity-aware access control for applications and other corporate resources and can integrate with authentication technologies including OAuth, OpenID Connect, and SAML. CVE-2026-94127 is not exposed in a default configuration: exploitation requires a BIG-IP virtual server with both an APM access policy and an OAuth profile configured. Because affected BIG-IP systems may process traffic at an organization’s network edge, organizations using this configuration should prioritize remediation.

Read more…
Source:  Rapid7 News


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • WhatsApp patches vulnerability related to image filter functionality

    September 2, 2021

    Check Point Research has announced the discovery of a vulnerability in the popular messaging platform WhatsApp that allowed attackers to read sensitive information from WhatsApp’s memory. WhatsApp acknowledged the issue and released a security fix for it in February. The messaging platform — considered the most popular globally with about two billion monthly active users — had ...

  • HPE Warns Sudo Bug Gives Attackers Root Privileges to Aruba Platform

    August 30, 2021

    Hewlett Packard Enterprise (HPE) is warning a vulnerability in Sudo, an open-source program used within its Aruba AirWave management platform, could allow any unprivileged and unauthenticated local user to gain root privileges on a vulnerable host. Rated high in severity, HPE warns the Sudo flaw could be part of a “chained attack” where an “attacker has ...

  • QNAP works on patches for OpenSSL bugs impacting its NAS devices

    August 30, 2021

    Network-attached storage (NAS) maker QNAP is investigating and working on security updates to address remote code execution (RCE) and denial-of-service (DoS) vulnerabilities patched by OpenSSL last week. The security flaws tracked as CVE-2021-3711 and CVE-2021-3712, impact QNAP NAS device running QTS, QuTS hero, QuTScloud, and HBS 3 Hybrid Backup Sync (a backup and disaster recovery app), ...

  • New Mirai Variant Targets WebSVN Command Injection Vulnerability (CVE-2021-32305)

    August 30, 2021

    Unit 42 researchers have observed exploits in the wild for a recently disclosed command injection vulnerability affecting WebSVN, an open-source web application for browsing source code. The critical command injection vulnerability was discovered and patched in May 2021. A proof of concept was released and within a week, on June 26, 2021, attackers exploited the ...

  • Microsoft Breaks Silence on Barrage of ProxyShell Attacks

    August 26, 2021

    Microsoft has broken its silence on the recent barrage of attacks on several ProxyShell vulnerabilities in that were highlighted by a researcher at Black Hat earlier this month. The company released an advisory late Wednesday letting customers know that threat actors may use unpatched Exchange servers “to deploy ransomware or conduct other post-exploitation activities” and urging ...

  • Cisco Issues Critical Fixes for High-End Nexus Gear

    August 25, 2021

    Cisco Systems released six security patches tied to its high-end 9000 series networking gear ranging in importance from critical, high and medium severity. The most serious of the bugs patched by Cisco (rated 9.1 out of 10) could allow a remote and unauthenticated adversary to read or write arbitrary files on to an application protocol interface ...