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:
- Defense contractor pays $9m to settle whistleblower’s cybersecurity allegations
July 11, 2022
Aerojet Rocketdyne, which makes propulsion and power systems for launch vehicles, missiles and satellites for NASA and the US military, has agreed to pay $9 million to settle charges it misrepresented its products’ compliance with cybersecurity requirements in federal government contracts. The El Segundo, California-based company has a deep history in American space and military contracting, ...
- Security advisory accidentally exposes vulnerable systems
July 6, 2022
A security advisory for a vulnerability (CVE) published by MITRE has accidentally been exposing links to remote admin consoles of over a dozen vulnerable IP devices since at least April 2022. BleepingComputer became aware of this issue yesterday after getting tipped off by a reader who prefers to remain anonymous. The reader was baffled on seeing ...
- What to do about inherent security flaws in critical infrastructure?
July 3, 2022
The latest threat security research into operational technology (OT) and industrial systems identified a bunch of issues — 56 to be exact — that criminals could use to launch cyberattacks against critical infrastructure. But many of them are unfixable, due to insecure protocols and architectural designs. And this highlights a larger security problem with devices that ...
- Log4Shell Vulnerability in VMware Leads to Data Exfiltration and Ransomware
June 28, 2022
Trend Micro Research recently analyzed several cases of a Log4Shell vulnerability being exploited in certain versions of the software VMware Horizon. After investigating the chain of events, they found that many of these attacks resulted in data being exfiltrated from the infected systems. However, the researchers also found that some of the victims were infected ...
- 2022 CWE Top 25 Most Dangerous Software Weaknesses
June 28, 2022
The Homeland Security Systems Engineering and Development Institute, sponsored by CISA and operated by MITRE, has released the 2022 Common Weakness Enumeration (CWE) Top 25 Most Dangerous Software Weaknesses list. The list uses data from the National Vulnerability Database to compile the most frequent and critical errors that can lead to serious vulnerabilities in software. An ...
- CISA Adds Eight Known Exploited Vulnerabilities to Catalog
June 27, 2022
CISA has added eight new 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 ...