December “In the Trend of VM” (#22): vulnerabilities in Windows, the expr-eval library, Control Web Panel, and Django. A traditional monthly roundup of trending vulnerabilities – this time, a fairly compact one. 💽
🗞 Post on Habr (rus)
🗞 Post on SecurityLab (rus)
🗒 Digest on the PT website (rus)
Four vulnerabilities in total:
🔻 EoP – Windows Kernel (CVE-2025-62215)
🔻 RCE – expr-eval (CVE-2025-12735)
🔻 RCE – Control Web Panel (CVE-2025-48703)
🔻 SQLi – Django (CVE-2025-64459)
December Microsoft Patch Tuesday. A total of 56 vulnerabilities were fixed – 9 fewer than in November. There is one vulnerability with confirmed in-the-wild exploitation:
🔻 EoP – Windows Cloud Files Mini Filter Driver (CVE-2025-62221)
There are currently no vulnerabilities with publicly available exploits. Among the remaining vulnerabilities, the following stand out:
🔹 RCE – Microsoft Office (CVE-2025-62554, CVE-2025-62557), Microsoft PowerShell (CVE-2025-54100), Microsoft Outlook (CVE-2025-62562), GitHub Copilot for JetBrains (CVE-2025-64671)
🔹 EoP – Windows Win32k (CVE-2025-62458), Windows Cloud Files Mini Filter Driver (CVE-2025-62454, CVE-2025-62457), Windows Common Log File System Driver (CVE-2025-62470), Windows Remote Access Connection Manager (CVE-2025-62472), Windows Storage (CVE-2025-59516)
About Elevation of Privilege – Windows Kernel (CVE-2025-62215) vulnerability. The vulnerability was addressed in the November Microsoft Patch Tuesday. Exploitation of this vulnerability allows a local attacker to gain SYSTEM privileges. The root cause of the vulnerability is a Race Condition (CWE-362) and a Double Free (CWE-415).
⚙️ Updates are available for Windows 10/11 and Windows Server 2019/2022/2025.
👾 Microsoft reported active exploitation of the vulnerability in attacks on November 11 as part of MSPT, and the following day the vulnerability was added to the CISA KEV catalog. No details about the attacks have been disclosed so far.
🛠 Public exploits have been available on GitHub since November 18.
November “In the Trend of VM” (#21): vulnerabilities in Windows, SharePoint, Redis, XWiki, Zimbra Collaboration, and Linux. The usual monthly roundup. After several months, here’s a big one. 🔥
🗞 Post on Habr (rus)
🗞 Post on SecurityLab (rus)
🗒 Digest on the PT website (rus)
A total of nine vulnerabilities:
🔻 RCE – Windows Server Update Services (WSUS) (CVE-2025-59287)
🔻 RCE – Microsoft SharePoint “ToolShell” (CVE-2025-49704)
🔻 RCE – Windows LNK File (CVE-2025-9491)
🔻 EoP – Windows Remote Access Connection Manager (CVE-2025-59230)
🔻 EoP – Windows Agere Modem Driver (CVE-2025-24990)
🔻 RCE – Redis “RediShell” (CVE-2025-49844)
🔻 RCE – XWiki Platform (CVE-2025-24893)
🔻 XSS – Zimbra Collaboration (CVE-2025-27915)
🔻 EoP – Linux Kernel (CVE-2025-38001)
November Microsoft Patch Tuesday. A total of 65 vulnerabilities. I’m not comparing this with the October report because I’ve decided to cover only MSPT-day vulnerabilities. The thing is, Microsoft has started massively adding Linux-product vulnerabilities to their official website, and these clutter the “extended” MSPT reports. 🤷♂️
There is one vulnerability with evidence of in-the-wild exploitation:
🔻 EoP – Windows Kernel (CVE-2025-62215)
No vulnerabilities have publicly available exploits yet. Notable ones include:
🔹 RCE – GDI+ (CVE-2025-60724), Microsoft Office (CVE-2025-62199), Microsoft Office (CVE-2025-62205, CVE-2025-62216), Agentic AI and Visual Studio Code (CVE-2025-62222), Visual Studio (CVE-2025-62214)
🔹 EoP – Windows Client-Side Caching (CVE-2025-60705), Windows Ancillary Function Driver for WinSock (CVE-2025-60719, CVE-2025-62213, CVE-2025-62217), Microsoft SQL Server (CVE-2025-59499)
About Remote Code Execution – Microsoft SharePoint “ToolShell” (CVE-2025-49704) vulnerability. This vulnerability is from the Microsoft’s July Patch Tuesday. SharePoint is a web application developed by Microsoft for corporate intranet portals, document management, and collaborative work. Deserialization of untrusted data in the DataSetSurrogateSelector class leads to remote code execution in the context of the SharePoint web server process. Exploitation requires authentication, obtainable for example via CVE-2025-49706 (“ToolShell” chain).
🔬 The “ToolShell” chain was demonstrated by the Viettel Cyber Security team at Pwn2Own Berlin, May 15–17, 2025 (prize $100,000).
👾 Signs of exploitation in the wild have been observed since July 7. The vulnerability was added to CISA KEV on July 22.
🛠 Public exploits available on GitHub since July 21.
➡️ Later “ToolShell” vulnerabilities: CVE-2025-53770 and CVE-2025-53771.
About Elevation of Privilege – Windows Remote Access Connection Manager (CVE-2025-59230) vulnerability. A vulnerability from the October Microsoft Patch Tuesday. The Windows Remote Access Connection Manager (RasMan) service is a core Windows component that manages dial-up and Virtual Private Network (VPN) connections, ensuring secure communication between a computer and remote networks. An access control flaw in the RasMan service could allow an authenticated attacker to elevate privileges to the SYSTEM level.
👾 On October 14, Microsoft reported signs of the vulnerability being exploited in the wild. On October 22, it was added to the CISA KEV catalog. No further details about the attacks have been disclosed so far.
🛠 No public exploits have been observed yet.
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