untrusted deserialization

The untrusted deserialization tag on WindowsForum.com covers security vulnerabilities where applications deserialize data from untrusted sources, leading to code execution or privilege escalation. A key example discussed is CVE-2026-20963, a Microsoft SharePoint deserialization flaw added to CISA's Known Exploited Vulnerabilities Catalog due to active exploitation. This tag is relevant for IT administrators, security professionals, and Windows users concerned with patch management, threat intelligence, and securing enterprise environments against deserialization attacks. Discussions emphasize the importance of applying Microsoft updates and monitoring CISA advisories to mitigate risks from such vulnerabilities.