Tag Archives: Microsoft

March episode “In the Trend of VM” (#13): vulnerabilities of Microsoft, PAN-OS, СommuniGate and who should patch hosts with deployed application

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March episode “In the Trend of VM” (#13): vulnerabilities of Microsoft, PAN-OS, СommuniGate and who should patch hosts with deployed application. I’m posting the translated video with a big delay, but it’s better than never. 😉

📹 Video on YouTube and LinkedIn
🗞 Post on Habr (rus)
🗒 Digest on the PT website

Content:

🔻 00:00 Greetings
🔻 00:31 Elevation of Privilege – Windows Ancillary Function Driver for WinSock (CVE-2025-21418)
🔻 01:12 Elevation of Privilege – Windows Storage (CVE-2025-21391)
🔻 01:53 Authentication Bypass – PAN-OS (CVE-2025-0108)
🔻 03:09 Remote Code Execution – CommuniGate Pro (BDU:2025-01331)
🔻 04:27 The VM riddle: who should patch hosts with a deployed application?
🔻 07:11 About the digest of trending vulnerabilities

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April Microsoft Patch Tuesday

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April Microsoft Patch Tuesday

April Microsoft Patch Tuesday. A total of 153 vulnerabilities, 2 times more than in March. Of these, 32 were added between the March and April MSPTs. Three vulnerabilities show signs of exploitation in the wild:

🔻 EoP – Windows Common Log File System Driver (CVE-2025-29824). An attacker can gain SYSTEM privileges. No technical details yet.
🔻 SFB – Microsoft Edge (CVE-2025-2783). Sandbox escape with an existing PoC exploit.
🔻 RCE – Microsoft Edge (CVE-2025-24201). Originally reported as a WebKit vuln on Apple OSes. 🤷‍♂️

Microsoft also patched vulnerabilities in Kubernetes with known exploits (CVE-2025-1974, CVE-2025-1097, CVE-2025-1098, CVE-2025-24514, CVE-2025-24513)

Other notable ones:

🔹 RCE – LDAP (CVE-2025-26670, CVE-2025-26663), TCP/IP (CVE-2025-26686), Microsoft Office (CVE-2025-29794, CVE-2025-29793), RDS (CVE-2025-27480, CVE-2025-27482), Hyper-V (CVE-2025-27491)
🔹 SFB – Kerberos (CVE-2025-29809)

🗒 Full Vulristics report

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March Microsoft Patch Tuesday

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March Microsoft Patch Tuesday

March Microsoft Patch Tuesday. 77 CVEs, 20 of which were added during the month. 7 vulnerabilities with signs of exploitation in the wild:

🔻 RCE – Windows Fast FAT File System Driver (CVE-2025-24985)
🔻 RCE – Windows NTFS (CVE-2025-24993)
🔻 SFB – Microsoft Management Console (CVE-2025-26633)
🔻 EoP – Windows Win32 Kernel Subsystem (CVE-2025-24983)
🔻 InfDisc – Windows NTFS (CVE-2025-24991, CVE-2025-24984)
🔻 AuthBypass – Power Pages (CVE-2025-24989) – in Microsoft web service, can be ignored

There are no vulnerabilities with public exploits, there are 2 more with private ones:

🔸 RCE – Bing (CVE-2025-21355) – in Microsoft web service, can be ignored
🔸 SFB – Windows Kernel (CVE-2025-21247)

Among the others:

🔹 RCE – Windows Remote Desktop Client (CVE-2025-26645) and Services (CVE-2025-24035, CVE-2025-24045), MS Office (CVE-2025-26630), WSL2 (CVE-2025-24084)
🔹 EoP – Windows Win32 Kernel Subsystem (CVE-2025-24044)

🗒 Full Vulristics report

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New episode “In the Trend of VM” (#12): 8 February CVEs & Why the Darknet Matters for VM Specialists

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New episode “In the Trend of VM” (#12): 8 February CVEs & Why the Darknet Matters for VM Specialists. Now with a new design and new video editing. 😉

📹 Video on YouTube and LinkedIn
🗞 Post on Habr (rus)
🗒 Digest on the PT website

Content:

🔻 00:00 Greetings
🔻 00:23 Remote Code Execution – Windows Lightweight Directory Access Protocol (LDAP) (CVE-2024-49112)
🔻 01:35 Remote Code Execution – Microsoft Configuration Manager (CVE-2024-43468)
🔻 02:38 Remote Code Execution – Windows OLE (CVE-2025-21298)
🔻 03:55 Elevation of Privilege – Windows Hyper-V NT Kernel Integration VSP (CVE-2025-21333, CVE-2025-21334, CVE-2025-21335)
🔻 05:02 Authentication Bypass – FortiOS/FortiProxy (CVE-2024-55591)
🔻 06:16 Remote Code Execution – 7-Zip (CVE-2025-0411)
🔻 07:27 Should a VM specialist be aware of what is happening in the Darknet?
🔻 08:48 About the digest of trending vulnerabilities

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New episode “In The Trend of VM” (#11): vulnerabilities that became trending in December and the final report on trending vulnerabilities for 2024

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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 Greetings
🔻 00:28 Elevation of Privilege – Windows Kernel Streaming WOW Thunk Service Driver (CVE-2024-38144)
🔻 01:30 Elevation of Privilege – Windows Common Log File System Driver (CVE-2024-49138)
🔻 02:37 Remote Code Execution – Apache Struts (CVE-2024-53677)
🔻 03:31 Authentication Bypass – Hunk Companion WordPress plugin (CVE-2024-11972)
🔻 04:44 Trending vulnerabilities for 2024

👾 08:10 Channel mascot 😅

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February Microsoft Patch Tuesday

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February Microsoft Patch Tuesday

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. Bypass – Azure (CVE-2025-21415)
🔸 EoP – Windows Setup Files Cleanup (CVE-2025-21419)
🔸 Spoofing – Windows NTLM (CVE-2025-21377)
🔸 Spoofing – Microsoft Edge (CVE-2025-21267, CVE-2025-21253)

Among the rest, the following can be highlighted:

🔹 RCE – Windows LDAP (CVE-2025-21376), Microsoft Excel (CVE-2025-21381, CVE-2025-21387), Microsoft SharePoint Server (CVE-2025-21400), DHCP Client Service (CVE-2025-21379)
🔹 EoP – Windows Core Messaging (CVE-2025-21184, CVE-2025-21358, CVE-2025-21414), Windows Installer (CVE-2025-21373)

🗒 Full Vulristics report

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About Elevation of Privilege – Windows Hyper-V NT Kernel Integration VSP (CVE-2025-21333, CVE-2025-21334, CVE-2025-21335) vulnerability

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About Elevation of Privilege - Windows Hyper-V NT Kernel Integration VSP (CVE-2025-21333, CVE-2025-21334, CVE-2025-21335) vulnerability

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 Defender Application Guard (MDAG).

If the vulnerabilities are successfully exploited, an attacker can gain System privileges. Microsoft specifically notes that this is a local privilege escalation on the host system, not any type of guest to host escape.

👾 These vulnerabilities are being actively exploited in the wild, though no public exploits are currently available.

The only difference in the vulnerability descriptions is that CVE-2025-21333 is caused by Heap-based Buffer Overflow, while CVE-2025-21334 and CVE-2025-21335 are caused by Use After Free.

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