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:

  • iPhone flaw could read your saved passwords out loud – update now

    October 7, 2024

    Apple has issued security updates for iOS 18.0.1 and iPadOS 18.0.1 which includes a fix for a bug that could allow a user’s saved passwords to be read aloud by its VoiceOver feature. VoiceOver allows users to use their iPhone or iPad even if they can’t see the screen. It gives audible descriptions of what’s on ...

  • CISA flags major Ivanti security flaw – patch now

    October 3, 2024

    The US Cybersecurity and Infrastructure Security Agency (CISA) has added a known Ivanti bug to its Known Exploited Vulnerabilities (KEV) catalog, signalling that it’s being actively abused in the wild. The bug that was just added is an SQL Injection vulnerability, found this spring in the Core server of Ivanti Endpoint Manager (EPM) 2022 SU5 and ...

  • Breaking Boundaries: Investigating Vulnerable Drivers and Mitigating Risks

    September 30, 2024

    Have you ever wondered why there are so many vulnerable drivers and what might be causing them to be vulnerable? Do you want to understand why some drivers are prone to crossing security boundaries and how we can stop that? Vulnerable drivers not only put the system where they are installed at risk, but they can ...

  • Proactive Visibility Is Foundational to Strong Cybersecurity

    September 30, 2024

    Exposures are more than CVEs, so organizations need to move beyond the traditional thinking of vulnerability management to a holistic view. Part of that view must be greater visibility into devices, users, applications, and all the digital infrastructure connected to an organization’s environment. Gaps in that view create risk exposure. Organizations must proactively identify anything that ...

  • Multiple Vulnerabilities in Common Unix Printing System (CUPS)

    September 27, 2024

    On Thursday, September 26, 2024, a security researcher publicly disclosed several vulnerabilities affecting different components of OpenPrinting’s CUPS (Common Unix Printing System). CUPS is a popular IPP-based open-source printing system primarily (but not only) for Linux and UNIX-like operating systems. According to the researcher, a successful exploit chain allows remote unauthenticated attackers to replace existing printers’ ...

  • Zooming in on CVE‑2024‑7965

    September 19, 2024

    On August 21, Google released an update for Chrome, fixing a total of 37 security flaws. Researchers across the globe paid their attention to the CVE‑2024‑7965 vulnerability described as an inappropriate implementation in the browser’s V8 engine. The vulnerability can lead to remote code execution (RCE) in the Chrome renderer and thus become a starting point ...