Chinese Threat Actors Exploit ToolShell SharePoint Flaw Weeks After Microsoft's July Patch

🗓️ 22 Oct 2025 12:56:00Reported by The Hacker NewsType

Chinese threat actors exploited ToolShell in SharePoint using CVE-2025-53770 to breach telecom and government targets after July patch.

Reporter	Title	Published	Views	Family All 171
GithubExploit	Exploit for Deserialization of Untrusted Data in Microsoft	28 Jul 202522:41	–	githubexploit
GithubExploit	Exploit for Deserialization of Untrusted Data in Microsoft	25 Jul 202520:43	–	githubexploit
GithubExploit	Exploit for Deserialization of Untrusted Data in Microsoft	21 Jul 202518:43	–	githubexploit
GithubExploit	Exploit for Deserialization of Untrusted Data in Microsoft	27 Jul 202520:55	–	githubexploit
GithubExploit	Exploit for Deserialization of Untrusted Data in Microsoft	23 Sep 202519:05	–	githubexploit
GithubExploit	Exploit for Deserialization of Untrusted Data in Microsoft	26 Jul 202510:54	–	githubexploit
GithubExploit	Exploit for Deserialization of Untrusted Data in Microsoft	23 Jul 202521:02	–	githubexploit
GithubExploit	Exploit for Deserialization of Untrusted Data in Microsoft	22 Jul 202522:33	–	githubexploit
GithubExploit	Exploit for Deserialization of Untrusted Data in Microsoft	2 Aug 202508:00	–	githubexploit
GithubExploit	Exploit for Deserialization of Untrusted Data in Microsoft	24 Jul 202501:14	–	githubexploit

22 Oct 2025 12:56Current

9High risk

Vulners AI Score9

CVSS 3.19.8

EPSS0.99982

SSVC