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:

  • CISA gives US federal agencies three days to fix a VPN bug under attack by a ransomware gang

    June 9, 2026

    A ransomware group is actively exploiting an unpatched flaw in security tools used across the U.S. federal government, prompting the U.S. cybersecurity agency CISA to order all civilian agencies to remediate the vulnerability by end of day Wednesday. Cybersecurity firm Check Point Software said the bug affects several of its remote access tools, firewalls, and VPNs, which act as ...

  • Chrome’s zero-day Whac-A-Mole continues with fifth exploited bug of the year

    June 9, 2026

    Google has fixed its fifth actively exploited Chrome zero-day of 2026, and this one earned its finder a $55,000 bounty. The flaw, tracked as CVE-2026-11645, is an out-of-bounds memory access bug in Chrome’s V8 JavaScript engine. Google confirmed that the vulnerability is being exploited in the wild, but has disclosed little beyond the bare technical details. Read ...

  • MiniPlasma: detecting exploitation of a critical unpatched Windows vulnerability

    June 3, 2026

    Over the past two months, the anonymous researcher Nightmare Eclipse (also known as Chaotic Eclipse) has publicly released six Windows vulnerabilities complete with ready-to-use exploits, without prior coordination with Microsoft. The most critical of these is MiniPlasma, a zero-day local privilege escalation exploit that grants attackers SYSTEM-level access. Read more… Source:  Kaspersky Sign up for the Cyber Security ...

  • Palo Alto VPN bug graduates from advisory to active exploitation

    June 1, 2026

    Palo Alto customers are being been told to patch yet another internet-facing security flaw after researchers caught attackers bypassing GlobalProtect authentication and gaining unauthorized VPN access. The flaw, tracked as CVE-2026-0257, affects PAN-OS deployments using GlobalProtect authentication override cookies under specific configurations. Read more… Source:  The Register Sign up for the Cyber Security Review Newsletter The latest cyber security news and ...

  • Containers on fire: from container escapes to supply chain attacks

    June 1, 2026

    Modern infrastructures universally rely on containerization to deploy applications, scale services, and build cloud platforms. The use of Docker, Kubernetes, and similar technologies has become the corporate standard for efficient automation. However, as containers grow in popularity, so does the interest of malicious actors — a trend Kaspersky actively track in our research into advanced ...

  • No fix yet for critical RCE bug in open-source Git service Gogs – exploit module is out

    May 29, 2026

    There’s a huge hole and no one is patching it thus far. A critical, remote code execution (RCE) bug in Gogs, a popular open-source self-hosted Git service, can be exploited by any authenticated user – no special privileges required – on a default installation to fully compromise vulnerable servers, steal credentials and multi-factor authentication secrets, ...