CVE-2026-45484CWE-502
Microsoft SharePoint Elevation of Privilege Vulnerability
High · published June 9, 2026
What it is
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
The record
Technical detail
- CVSS v3.1
- 8.8 · HIGH
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- CVSS v4.0
- Not supplied
- EPSS
- 0.02286 · 83.0th percentile
- Weakness
- CWE-502 · Deserialization of Untrusted Data
- Published
- 2026-06-09T17:05Z
EPSS history
Timeline