Microsoft SharePoint Deserialization of Untrusted Data Vulnerability

Description

References

• msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53770 · Vendor Advisory
• arstechnica.com/security/2025/07/sharepoint-vulnerability-with-9-8-severity-rating-is-under-exploit-across-the-globe · Exploit
• kaizensecurity/CVE-2025-53770 · Exploit
• msrc.microsoft.com/blog/2025/07/customer-guidance-for-sharepoint-vulnerability-cve-2025-53770 · Mitigation
• news.ycombinator.com/item · Issue Tracking
• research.eye.security/sharepoint-under-siege · Exploit
• therecord.media/microsoft-sharepoint-zero-day-vulnerability-exploited-globally · Press/Media Coverage
• bleepingcomputer.com/news/microsoft/microsoft-sharepoint-zero-day-exploited-in-rce-attacks-no-patch-available · Press/Media Coverage
• cisa.gov/news-events/alerts/2025/07/20/microsoft-releases-guidance-exploitation-sharepoint-vulnerability-cve-2025-53770

Altre vulnerabilità di sharepoint server

• CVE-2026-108452ALTO 8.8Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker …
• CVE-2026-88164ALTO 8.8Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
• CVE-2026-97783MEDIO 6.1Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized a…
• CVE-2026-97755ALTO 8.8Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
• CVE-2026-96044ALTO 8.8No cwe for this issue in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.