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high advisory

Lenovo System Update: Improper Permissions Vulnerability (CVE-2026-77873)

Lenovo System Update contains an improper permissions vulnerability that allows a local authenticated user to execute code with elevated privileges.

CVE search metadata

CVE search record: CVE-2026-77873. Severity: high. CVSS: 7.3. KEV: no. Product: System Update. Brief: Lenovo System Update: Improper Permissions Vulnerability (CVE-2026-77873). Brief link: https://feed.craftedsignal.io/briefs/2026-11-lenovo-system-update-cve-2026-77873/

Triage facts

Revision 1
Applicability
System Update
Evidence
Unknown
Severity
High
Sources
1 public source
Freshness
Revision 1Nov 11, 17:58 UTC
Vulnerabilities
1 CVE
Source quality
A2Roughly even chance

Lenovo System Update is affected by an improper permissions vulnerability, identified as CVE-2026-77873. This vulnerability allows a local, authenticated user to execute code with elevated privileges on the affected system.

Impact

An authenticated local attacker can leverage this vulnerability to execute code with elevated privileges.

Recommendation

  1. Inventory systems running Lenovo System Update.
  2. Monitor vendor security advisories for updates regarding this vulnerability.