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:
- RSA coughs to critical-rated bug in its authentication SDK
December 3, 2017
RSA developers and admins have been given two critical-level authentication bugs to patch. For the sysadmin, the issue struck RSA’s software providing Web-based authentication for Apache. CVE-2017-14377 is an authentication bypass that existed because of an “input validation flaw in RSA Authentication Agent for Web for Apache Web Server”. If the authentication agent is configured to use UDP there’s ...
- MacOS security flaw grants admin access to anyone
November 28, 2017
Apple, Apple, Apple. What are we going to do with you? In your most recent High Sierra macOS release, it turns out you’ve given a way for any local user to take over a Mac — lock, stock, and two smoking barrels. This exploit doesn’t require any mad NSA-type hacker skillz. All you have to do is go ...
- HP patches severe code execution bug in enterprise printers
November 23, 2017
HP has issued firmware patches to fix a security flaw which allowed attackers to perform remote code execution attacks on enterprise-grade printers. FoxGlove Security researchers issued an advisory disclosing the technical details of the bug, CVE-2017-2750, earlier this week. The team tested out HP’s PageWide Enterprise Color MFP 586 and the HP Color LaserJet Enterprise M553 models, and found they ...
- Oracle Issues Emergency Patches for ‘JoltandBleed’ Vulnerabilities
November 16, 2017
Oracle pushed out an emergency update for vulnerabilities affecting several of its products that rely on its proprietary Jolt protocol. The bugs were discovered by researchers at ERPScan who named the series of five vulnerabilities JoltandBleed. The vulnerabilities are severe, with two of the bugs scoring 9.9 and 10 on the CVSS scale. Products affected include Oracle PeopleSoft ...
- Bluetooth Hack Affects 20 Million Amazon Echo and Google Home Devices
November 15, 2017
Remember BlueBorne? A series of recently disclosed critical Bluetooth flaws that affect billions of Android, iOS, Windows and Linux devices have now been discovered in millions of AI-based voice-activated personal assistants, including Google Home and Amazon Echo. As estimated during the discovery of this devastating threat, several IoT and smart devices whose operating systems are often updated less frequently than smartphones and ...
- 17-Year-Old MS Office Flaw Lets Hackers Install Malware Without User Interaction
November 14, 2017
You should be extra careful when opening files in MS Office. When the world is still dealing with the threat of ‘unpatched’ Microsoft Office’s built-in DDE feature, researchers have uncovered a serious issue with another Office component that could allow attackers to remotely install malware on targeted computers. The vulnerability is a memory-corruption issue that resides in all ...