CVE-2026-63512
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk39th percentile - higher than 39% of all known CVEs
Summary
An incorrect authorization vulnerability in Microsoft Office SharePoint allows an authorized attacker to perform tampering over a network.
Risk Assessment
An authorized attacker could modify data, potentially leading to integrity compromise.
Recommendation
Install security updates for Microsoft Office SharePoint.
Other vulnerabilities in Microsoft Office SharePoint
See all- CVE-2026-97783High
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
- CVE-2026-96044High
A vulnerability with no assigned CWE in Microsoft Office SharePoint allows an authenticated attacker to elevate privileges over a network. The flaw enables privilege escalation within the SharePoint environment.
- CVE-2026-88206High
Server-side request forgery (SSRF) in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
- CVE-2026-88204High
Cross-site scripting (XSS) vulnerability in Microsoft Office SharePoint due to improper input neutralization during web page generation. Allows an authorized attacker to perform spoofing over a network.
- CVE-2026-88200High
Privilege context switching error in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network. The issue involves improper security context management.
- CVE-2026-88198High
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network. The issue stems from improper access permission verification.
- CVE-2026-88166High
Integer overflow or wraparound in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- CVE-2026-88163High
Integer overflow or wraparound in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- CVE-2026-88155High
Heap-based buffer overflow in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- CVE-2026-85900High
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Original NVD description (English source)
Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to perform tampering over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS