On April 8, 2025, Microsoft patched 121 vulnerabilities across its products, including CVE-2025-29824—the only one known to be exploited in the wild. This particular flaw enabled adversaries to escalate Windows privileges by leveraging a bug in the clfs.sys driver.
Microsoft Threat Intelligence discovered the issue during the Storm-2460 attacks targeting organizations in Saudi Arabia, Spain, Venezuela, and the United States. By exploiting CVE‑2025‑29824, the threat actor was able to escalate its privileges to NT AUTHORITY\SYSTEM to perform lateral movement and encrypt victims’ files.
Read more…
Source: BI.ZONE
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- Chinese threat actors hacked NYC MTA using Pulse Secure zero-day
June 3, 2021
Chinese-backed threat actors breached New York City’s Metropolitan Transportation Authority (MTA) network in April using a Pulse Secure zero-day. Still, they failed to cause any data loss or gain access to systems controlling the transportation fleet. MTA mitigated the vulnerability on April 21, one day after Pulse Secure issued an advisory, and CISA published an alert ...
- CVE-2021-30724: CVMServer Vulnerability in macOS and iOS
June 3, 2021
We discovered a vulnerability in macOS rooted in the Core Virtual Machine Server (CVMServer). The vulnerability, labeled CVE-2021-30724, is triggered by an integer overflow leading to an out-of-bounds memory access, from which point privilege escalation can be attained. It affects devices running older versions of macOS Big Sur 11.4, iOS 14.6, and iPadOS 14.6. This issue ...
- CVE-2021-31181: Microsoft Sharepoint Webpart Interpretation Conflict Remote Code Execution Vulnerability
June 2, 2021
In May of 2021, Microsoft released a patch to correct CVE-2021-31181 – a remote code execution bug in the supported versions of Microsoft SharePoint Server. This bug was reported to the ZDI program by an anonymous researcher and is also known as ZDI-21-573. This blog takes a deeper look at the root cause of this ...
- HPE Fixes Critical Zero-Day in Server Management Software
May 31, 2021
Hewlett Packard Enterprise (HPE) has fixed a critical zero-day remote code execution (RCE) flaw in its HPE Systems Insight Manager (SIM) software for Windows that it originally disclosed in December. HPE SIM is a tool that enables remote support automation and management for a variety of HPE servers, including the HPE ProLiant Gen10 and HPE ProLiant ...
- New Epsilon Red ransomware hunts unpatched Microsoft Exchange servers
May 29, 2021
A new ransomware threat calling itself Red Epsilon has been seen leveraging Microsoft Exchange server vulnerabilities to encrypt machines across the network. Epsilon Red ransomware attacks rely on more than a dozen scripts before reaching the encryption stage and also use a commercial remote desktop utility. Read more… Source: Bleeping Computer
- Re-Checking Your Pulse: Updates on Chinese APT Actors Compromising Pulse Secure VPN Devices
May 27, 2021
Mandiant published detailed results of our investigations into compromised Pulse Secure devices by suspected Chinese espionage operators. This blog post is intended to provide an update on our findings, give additional recommendations to network defenders, and discuss potential implications for U.S.-China strategic relations. Mandiant continues to gather evidence and respond to intrusions involving compromises of Pulse ...