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 Releases One Industrial Control Systems Advisory
November 1, 2022
CISA released one Industrial Control Systems (ICS) advisory on November 1, 2022. This advisory provides timely information about current security issues, vulnerabilities, and exploits surrounding ICS. CISA encourages users and administrators to review the newly released ICS advisory for technical details and mitigations: ICSA-22-221-01 Mitsubishi Electric Multiple Factory Automation Products (Update C) Read more… Source: U.S. Cybersecurity and Infrastructure ...
- Actively exploited Windows MoTW zero-day gets unofficial patch
October 30, 2022
A free unofficial patch has been released for an actively exploited zero-day that allows files signed with malformed signatures to bypass Mark-of-the-Web security warnings in Windows 10 and Windows 11. Last weekend, BleepingComputer reported that threat actors were using stand-alone JavaScript files to install the Magniber ransomware on victims’ devices. When a user downloads a file from ...
- Attack Surface Management 2022 Midyear Review – Part 2
October 27, 2022
The cybersecurity landscape changed significantly in the first half of 2022. In our midyear roundup, Trend Micro researchers examine these changes and their effects on business operations as well as what you need to know about staying protected from online attacks. In part one of the series, Trend Micro researchers talked about the growing attack surface ...
- CISA Adds Six Known Exploited Vulnerabilities to Catalog
October 24, 2022
CISA has added six vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risk to the federal enterprise. Note: to view the newly added vulnerabilities in the catalog, click on the arrow in the “Date Added ...
- Apple fixes new zero-day used in attacks against iPhones, iPads
October 24, 2022
In security updates released on Monday, Apple has fixed the ninth zero-day vulnerability used in attacks against iPhones since the start of the year. Apple revealed in an advisory today that it’s aware of reports saying the security flaw “may have been actively exploited.” The bug (CVE-2022-42827) is an out-of-bounds write issue reported to Apple by an ...
- Exploited Windows zero-day lets JavaScript files bypass security warnings
October 22, 2022
An update was added to the end of the article explaining that any Authenticode-signed file, including executables, can be modified to bypass warnings. A new Windows zero-day allows threat actors to use malicious stand-alone JavaScript files to bypass Mark-of-the-Web security warnings. Threat actors are already seen using the zero-day bug in ransomware attacks. Windows includes a security ...