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:

  • Google patches another actively exploited Chrome zero-day

    April 19, 2023

    Google has released a security update for the Chrome web browser to fix the second zero-day vulnerability found to be exploited in attacks this year. “Google is aware that an exploit for CVE-2023-2136 exists in the wild,” reads the security bulletin from the company. Read more… Source: Bleeping Computer  

  • CISA Releases Four Industrial Control Systems Advisories

    April 18, 2023

    CISA released four Industrial Control Systems (ICS) advisories on April 18, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. CISA encourages users and administrators to review the newly released ICS advisories for technical details and mitigations: ICSA-23-108-01 Omron CSCJ Series ICSA-23-108-02 Schneider Electric Easy UPS Online Monitoring Software Read more… Source: U.S. Cybersecurity ...

  • Update now: Google emits emergency fix for zero-day Chrome vulnerability

    April 17, 2023

    Google on Friday released an emergency update for Chrome to address a zero-day security flaw. The vulnerability, tracked as CVE-2023-2033, can be exploited by a malicious webpage to run arbitrary code in the browser. Thus, surfing to a bad website with a vulnerable browser could lead to your device being hijacked. Exploit code for this hole ...

  • Multiple Internet to Baseband Remote Code Execution Vulnerabilities in Exynos Modems

    April 16, 2023

    In late 2022 and early 2023, Project Zero reported eighteen 0-day vulnerabilities in Exynos Modems produced by Samsung Semiconductor. The four most severe of these eighteen vulnerabilities (CVE-2023-24033, CVE-2023-26496, CVE-2023-26497 and CVE-2023-26498) allowed for Internet-to-baseband remote code execution. Tests conducted by Project Zero confirm that those four vulnerabilities allow an attacker to remotely compromise a phone ...

  • Linux kernel logic allowed Spectre attack on ‘major cloud provider’

    April 13, 2023

    The Spectre vulnerability that has haunted hardware and software makers since 2018 continues to defy efforts to bury it. On Thursday, Eduardo (sirdarckcat) Vela Nava, from Google’s product security response team, disclosed a Spectre-related flaw in version 6.2 of the Linux kernel. Read more… Source: The Register  

  • CISA Releases Sixteen Industrial Control Systems Advisories

    April 13, 2023

    CISA released sixteen Industrial Control Systems (ICS) advisories on April 13, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSMA-23-103-01 B. Braun Battery Pack SP with Wi-Fi ICSA-23-103-01 Siemens Adaptec maxView Application ICSA-23-103-02 Siemens JT Open and JT Utilities ICSA-23-103-03 Siemens in OPC Foundation Local Discovery Server Read more… Source: U.S. Cybersecurity and Infrastructure ...