CVE-2026-50522 — Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
Microsoft SharePoint contains a deserialization of untrusted data vulnerability which could allow an unauthorized attacker to execute code over a network.
- Severity
- critical
- Product
- Microsoft SharePoint
- Published
- 2026-07-22
- EPSS
- 0.846
- CISA KEV
- Known exploited
- Ransomware
- Known campaign use
References and validation
- https://github.com/search?q=CVE-2026-50522&type=repositories
- https://nvd.nist.gov/vuln/detail/CVE-2026-50522
Entries are refreshed from CISA KEV and FIRST EPSS. Validate applicability before testing.