THREAT OPS › Threat News › ZDI-26-413: (Pwn2Own) Microsoft SharePoint Improper Verification of Cryptographic Signature Remote Code Execution Vulnerability
ZDI-26-413: (Pwn2Own) Microsoft SharePoint Improper Verification of Cryptographic Signature Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft SharePoint. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.1. The following CVEs are assigned: CVE-2026-50522.
MITRE ATT&CK techniques
- SharepointT1213.002
Indicators of compromise
- CVE-2026-50522cve
Original source: http://www.zerodayinitiative.com/advisories/ZDI-26-413/