Alexander V. Leonov

New episode “In The Trend of VM” (#11): vulnerabilities that became trending in December and the final report on trending vulnerabilities for 2024. I made this episode exclusively for the Telegram channel @avleonovcom “Vulnerability Management and More”. 😉 📹 Video on YouTube, LinkedIn🗞 Post on Habr (rus)🗒 Digest on the PT website Content: 🔻 00:00 […]

February Microsoft Patch Tuesday. 89 CVEs, 33 added since January. Two with signs of exploitation in the wild: 🔻 EoP – Windows Ancillary Function Driver for WinSock (CVE-2025-21418)🔻 EoP – Windows Storage (CVE-2025-21391) There are no vulnerabilities with public exploits, but there are 7 with private ones: 🔸 RCE – Microsoft Edge (CVE-2025-21279, CVE-2025-21283)🔸 Auth. […]

About Elevation of Privilege – Windows Hyper-V NT Kernel Integration VSP (CVE-2025-21333, CVE-2025-21334, CVE-2025-21335) vulnerability. These three vulnerabilities were disclosed as part of Microsoft’s January Patch Tuesday and share the same description. They were found in a component used for communications between the host OS and container-type virtual machines, such as Windows Sandbox and Microsoft […]

About Remote Code Execution – Microsoft Configuration Manager (CVE-2024-43468) vulnerability. This vulnerability is from the October 2024 MSPT. Microsoft Configuration Manager (ConfigMgr) is used to manage large groups of computers, providing remote control, patch management, software distribution, operating system deployment, etc. According to Microsoft, the vulnerability allowed an unauthenticated attacker to execute commands at the […]

About Remote Code Execution – 7-Zip (CVE-2025-0411) vulnerability. 7-Zip is a popular, free, open-source archiver widely used by organizations as a standard tool for managing archives. The vulnerability is a bypass of the Mark-of-the-Web mechanism. 🔹 If you download and run a suspicious executable file on Windows, Microsoft Defender’s SmartScreen will block it from executing […]

About Authentication Bypass – FortiOS (CVE-2024-55591) vulnerability. A critical flaw allows remote attackers to gain super-admin privileges via crafted requests to the Node.js websocket module. Affected systems include Fortinet devices running FortiOS (e.g., FortiGate NGFW) and FortiProxy. 🔹 On January 10, Arctic Wolf reported attacks on Fortinet devices that began in November 2024. Attackers create […]

About Remote Code Execution – Windows OLE (CVE-2025-21298) vulnerability. The vulnerability is from the January Microsoft Patch Tuesday. OLE (Object Linking and Embedding) is a technology for linking and embedding objects into other documents and objects, developed by Microsoft. A common use of this technology is embedding an Excel table in a Word document. What […]

I have finalized the list of trending vulnerabilities for 2024 according to Positive Technologies. Last year, 74 vulnerabilities were classified as trending (to compare the scale, just over 40,000 were added to NVD in 2024). All trending vulnerabilities are found in Western commercial products and open source projects. This year, the vulnerabilities of domestic Russian […]

January Linux Patch Wednesday. Out of 424 total vulnerabilities, 271 are in the Linux Kernel. None show signs of exploitation in the wild, but 9 have public exploits. 🔸 RCE – Apache Tomcat (CVE-2024-56337). Based on the description, the vulnerability affects “case-insensitive file systems” like Windows or MacOS. However, Debian lists it as affecting tomcat9 […]

The Elevation of Privilege – Windows Common Log File System Driver (CVE-2024-49138) has become more critical. Just as I wrote that nothing had been heard about this vulnerability for a month since it was first published in Microsoft’s December Patch Tuesday, a public exploit for it appeared on January 15th. 🙂 It was developed by […]