CISA Warns of Microsoft SharePoint Server Code Execution Vulnerability Exploited in Attacks

CISA has added a newly disclosed Microsoft SharePoint Server vulnerability, tracked as CVE-2026-45659, to its Known Exploited Vulnerabilities (KEV) Catalog, warning that the flaw is actively being exploited in real-world attacks. The vulnerability is a deserialization of untrusted data issue (CWE-502) that allows an authenticated attacker to execute arbitrary code remotely over the network. The […] The post CISA Warns of Microsoft SharePoint Server Code Execution Vulnerability Exploited in Attacks appeared first on Cyber Security News.