May 12, 2026—KB5087541 (OS Build 25398.2330)

🗓️ 12 May 2026 14:00:00Reported by MicrosoftType

Windows Server 23H2 KB5087541 update adds Egypt DST support and fixes; Secure Boot certificates expire June 2026.

Reporter	Title	Published	Views	Family All 1031
GithubExploit	Exploit for Stack-based Buffer Overflow in Microsoft	2 Jun 202618:48	–	githubexploit
GithubExploit	Exploit for Deserialization of Untrusted Data in Microsoft	9 Mar 202607:43	–	githubexploit
GithubExploit	Exploit for Deserialization of Untrusted Data in Microsoft	28 Oct 202519:56	–	githubexploit
GithubExploit	Exploit for Deserialization of Untrusted Data in Microsoft	1 Nov 202520:05	–	githubexploit
GithubExploit	Exploit for Stack-based Buffer Overflow in Microsoft	4 Jun 202617:33	–	githubexploit
GithubExploit	Exploit for Stack-based Buffer Overflow in Microsoft	6 Jun 202613:29	–	githubexploit
GithubExploit	Exploit for Deserialization of Untrusted Data in Microsoft	6 Nov 202510:56	–	githubexploit
GithubExploit	Exploit for Stack-based Buffer Overflow in Microsoft	6 Jun 202613:42	–	githubexploit
GithubExploit	Exploit for Stack-based Buffer Overflow in Microsoft	5 Jun 202610:26	–	githubexploit
GithubExploit	Exploit for Stack-based Buffer Overflow in Microsoft	6 Jun 202614:02	–	githubexploit

12 May 2026 14:00Current

7High risk

Vulners AI Score7

CVSS 47.3

CVSS 3.17 - 9.8

EPSS0.72697

SSVC