QSearchQSearch

CVE-2026-45659

8.8 HIGH

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network

Published: 2026-05-22 · Last updated: 2026-05-27

Severity and scoring

CVSS
8.8 HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-502

Affected products

VendorProduct
microsoftsharepoint_server

Description

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Source: NVD

References

Related CVEs

Same vendor

  • CVE-2026-50512 Improper link resolution before file access ('link following') in Microsoft PC Manager allows an authorized attacker to elevate privilege... (7.8 HIGH)
  • CVE-2026-50511 Improper link resolution before file access ('link following') in Microsoft PC Manager allows an authorized attacker to elevate privilege... (7.8 HIGH)
  • CVE-2026-50507 Protection mechanism failure in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack (6.8 MEDIUM)
  • CVE-2026-49161 Improper access control in Microsoft PC Manager allows an authorized attacker to bypass a security feature locally (7.8 HIGH)
  • CVE-2026-49160 Uncontrolled resource consumption in HTTP/2 allows an unauthorized attacker to deny service over a network (7.5 HIGH)

Same CWE

  • CVE-2026-48775 LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite) (6.8 MEDIUM)
  • CVE-2026-10748 An authenticated user with the nx-licensing-create privilege can upload a specially crafted license file to execute arbitrary operating s...
  • CVE-2026-24228 NVIDIA NeMo Framework for Linux contains a vulnerability where an attacker may cause deserialization of untrusted data (7.8 HIGH)
  • CVE-2026-48853 Deserialization of Untrusted Data and Allocation of Resources Without Limits or Throttling vulnerabilities in elixir-grpc grpc allow unau...
  • CVE-2026-9691 Unauthenticated PHP Object Injection in Integration for ActiveCampaign and Contact Form 7, WPForms, Elementor, Ninja Forms <= 1.1.1 versions (9.8 CRITICAL)