TeamViewer security advisory (AV26-852)
Serial Number: AV26-852 Date: August 26, 2026 As of August 26, 2026, TeamViewer is affected by vulnerabilities in the following products: TeamViewer Full Client Multiple versions and platforms TeamViewer Host Multiple versions and platforms TeamViewer Portable Prior to version 15.64.7 TeamViewer QuickSupport Multiple versions and platforms The Cyber Centre encourages users and administrators to review the provided web links and apply any necessary updates as they become available. TV-2026-1008 TV-2026-1009 Security bulletins | TeamViewer
CSIRTS triage
- What
- Multiple unspecified vulnerabilities affecting TeamViewer Full Client, Host, Portable, and QuickSupport.
- Who is affected
- TeamViewer users across multiple versions and platforms.
- Urgency
- Unknown severity pending detailed advisory review; no evidence of active exploitation reported.
- Action
- Monitor TeamViewer security bulletins TV-2026-1008 and TV-2026-1009 and apply updates when available.
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Details
Original advisory: https://cyber.gc.ca/en/alerts-advisories/teamviewer-security-advisory-av26-852
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