Microsoft is publishing 137 vulnerabilities on May 2026 Patch Tuesday. Microsoft is not aware of exploitation in the wild or public disclosure for any of these vulnerabilities. So far this month, Microsoft has provided patches to address 133 browser vulnerabilities, which are not included in the Patch Tuesday count above.
Windows Netlogon: critical RCE
Anyone responsible for securing a domain controller should prioritize remediation of CVE-2026-41089, which is a critical stack-based buffer overflow in Windows Netlogon with a CVSS v3 base score of 9.8. Exploitation leads to execution in the context of the Netlogon service, so that’s SYSTEM privileges on the domain controller. For most pentesters, that’s the point at which the customer report more or less writes itself. No privileges or user interaction are required, and attack complexity is low, which suggests that creation of a reliable exploit might not be especially difficult for anyone with knowledge of the specific mechanism.
Read more…
Source: Rapid7
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- Patch-resistant autonomous exploits of Citrix NetScaler hardware hit thousands in Europe
August 17, 2023
Researchers have found an expansive and active threat campaign that exploited a severe Citrix NetScaler vulnerability to backdoor thousands of devices, including those that were subsequently patched. Attackers automated the exploitation of the remote code execution vulnerability, tracked as CVE-2023-3519, to place Web shells on vulnerable devices. These were found to persist through patches and reboots. Read ...
- New widespread IoT compromise could affect millions of logic controller chips
August 15, 2023
Microsoft security researcher Vladimir Tokarev demonstrated an interesting attack on the industrial internet of things automation software called Codesys. Tokarev, who showed the exploit last week at the annual BlackHat security conference in Las Vegas, used a miniature elevator model to demonstrate how the attack could crash its cab. The software – and more importantly, its ...
- Multiple high severity vulnerabilities in CODESYS V3 SDK could lead to RCE or DoS
August 10, 2023
Microsoft’s cyberphysical system researchers recently identified multiple high-severity vulnerabilities in the CODESYS V3 software development kit (SDK), a software development environment widely used to program and engineer programmable logic controllers (PLCs). Exploitation of the discovered vulnerabilities, which affect all versions of CODESYS V3 prior to version 3.5.19.0, could put operational technology (OT) infrastructure at risk ...
- CISA Releases Twelve Industrial Control Systems Advisories
August 10, 2023
CISA released twelve Industrial Control Systems (ICS) advisories on August 10, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-23-222-01 Siemens Solid Edge, JT2Go and Teamcenter Visualization ICSA-23-222-02 Siemens Parasolid Installer ICSA-23-222-03 Siemens JT Open, JT Utilities, and Parasolid Read more… Source: U.S. Cybersecurity and Infrastructure Security Agency
- CISA Releases Five Industrial Control Systems Advisories
August 3, 2023
CISA released five Industrial Control Systems (ICS) advisories on August 3, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-23-215-01 Mitsubishi Electric GOT2000 and GOT SIMPLE ICSA-23-215-02 Mitsubishi Electric GT and GOT Series Products Read more… Source: U.S. Cybersecurity and Infrastructure Security Agency
- CISA, NSA, FBI, and International Partners Release Joint CSA on Top Routinely Exploited Vulnerabilities of 2022
August 3, 2023
The U.S. Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency (NSA), Federal Bureau of Investigation (FBI), and international partners are releasing a joint Cybersecurity Advisory (CSA), 2022 Top Routinely Exploited Vulnerabilities. This advisory provides details on the top Common Vulnerabilities and Exposures (CVEs) routinely exploited by malicious cyber actors in 2022, and the associated Common ...