CVE-2026-83886
HighCVSS 7.0Exploitation Probability (EPSS)
Low risk21th percentile - higher than 21% of all known CVEs
Summary
Use after free in Windows Update Orchestrator Service allows an authorized attacker to elevate privileges locally.
Risk Assessment
A local attacker can exploit this flaw to escalate privileges, potentially leading to system takeover.
Recommendation
It is recommended to immediately install the latest security updates for Windows.
Other vulnerabilities in Windows Update Orchestrator Service
See all- CVE-2026-97812High
Double free in Windows Update Orchestrator Service allows an authorized attacker to elevate privileges locally.
- CVE-2026-83933Medium
Improper link resolution before file access ('link following') in the Windows Update Orchestrator Service allows an authorized attacker to disclose information locally.
- CVE-2026-83930High
Use after free in Windows Update Orchestrator Service allows an authorized attacker to elevate privileges locally.
- CVE-2026-83793High
Improper link resolution before file access ('link following') in Windows Update Orchestrator Service allows an authorized attacker to elevate privileges locally.
- CVE-2026-83507Medium
A link following vulnerability exists in Windows Update Orchestrator Service, involving improper link resolution before file access. An authorized attacker can exploit this to disclose information locally.
- CVE-2026-81964Medium
Use of hard-coded credentials in Windows Update Orchestrator Service allows an authorized attacker to bypass a security feature locally.
Original NVD description (English source)
Use after free in Windows Update Orchestrator Service allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS