ISLAMABAD (The Thursday Times) — Pakistan’s National Cyber Emergency Response Team (National CERT) has urged TeamViewer users to update the remote-access software after a high-severity flaw was found that could let attackers crash it or run malicious code on a computer.
The flaw, CVE-2026-111585, is rated 8.8 out of 10 for severity. It affects TeamViewer’s Full Client and Portable versions on Windows, macOS and Linux, and its Android Remote Control app, in versions before 15.83. TeamViewer disclosed it in a security bulletin on October 27 and released fixes.
The attack is not automatic: it only works if a user connects to a remote computer that is controlled by an attacker or has been compromised. That computer can then send data that causes a crash or, depending on the platform, runs code with the same privileges as the app. TeamViewer said that at the time of publication it was not aware of any active exploitation.
Users should move to version 15.83 or later, and those on older branches should install the separate fixes for them, according to the advisory. Where an update is not immediately possible, it advises blocking untrusted remote connections. Organisations that suspect a device has been compromised should preserve logs, restrict remote access and seek incident-response help.
