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:
- Critical flaw leaves thousands of Cisco Switches vulnerable to remote hacking
April 4, 2018
Security researchers at Embedi have disclosed a critical vulnerability in Cisco IOS Software and Cisco IOS XE Software that could allow an unauthenticated, remote attacker to execute arbitrary code, take full control over the vulnerable network equipment and intercept traffic. The stack-based buffer overflow vulnerability (CVE-2018-0171) resides due to improper validation of packet data in Smart ...
- New MacOS Backdoor Linked to OceanLotus Found
April 4, 2018
We identified a MacOS backdoor (detected by Trend Micro as OSX_OCEANLOTUS.D) that we believe is the latest version of a threat used by OceanLotus (a.k.a. APT 32, APT-C-00, SeaLotus, and Cobalt Kitty). OceanLotus was responsible for launching targeted attacks against human rights organizations, media organizations, research institutes, and maritime construction firms. The attackers behind OSX_OCEANLOTUS.D target MacOS computers which have ...
- Cryptocurrency Miner Distributed via PHP Weathermap Vulnerability, Targets Linux Servers
March 21, 2018
Legitimate and large-scale cryptocurrency mining operations often invest in dedicated hardware and electric consumption to make a profit. This doesn’t escape the attention of cybercriminals: Malicious cryptocurrency mining was so pervasive last year that it was the most detected network event in devices connected to home routers. Through our incident response-related monitoring, we observed intrusion attempts whose indicators we’ve been able to ...
- Windows Remote Assistance Exploit Lets Hackers Steal Sensitive Files
March 20, 2018
You have always been warned not to share remote access to your computer with untrusted people for any reason—it’s a basic cybersecurity advice, and common sense, right? But what if, I say you should not even trust anyone who invites or offer you full remote access to their computers. A critical vulnerability has been discovered in Microsoft’s Windows ...
- AMD Acknowledges Newly Disclosed Flaws In Its Processors — Patches Coming Soon
March 20, 2018
MD has finally acknowledged 13 critical vulnerabilities, and exploitable backdoors in its Ryzen and EPYC processors disclosed earlier this month by Israel-based CTS Labs and promised to roll out firmware patches for millions of affected devices ‘in the coming weeks.’ According to CTS-Labs researchers, critical vulnerabilities (RyzenFall, MasterKey, Fallout, and Chimera) that affect AMD’s Platform Security ...
- Spring break! Critical vuln in Pivotal framework’s Data parts plugged
March 5, 2018
Pivotal’s Spring Data REST project has a serious security hole that needs patching. Pivotal’s Spring Framework is a popular platform for building web apps. Spring Data REST is a collection of additional components for devs to build Java applications that offer RESTful APIs to underlying Spring Data repositories. These interfaces are widely used. Read more… Source: The Register