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A newly discovered security flaw affecting TeamViewer on Linux and macOS allowed malicious actors to execute arbitrary code on targeted computers. Tracked as CVE-2026-92372, the vulnerability carries a severity rating of 8.8 out of 10 according to TeamViewer's official security bulletin.

The vulnerability originated in how the software processed incoming images during a remote control session. Attackers could exploit this flaw by sending manipulated screen images or by having a user open a maliciously crafted recorded session file. This allowed out-of-bounds data to be written outside the allocated memory buffer, ultimately enabling the execution of arbitrary code on the victim's machine.

TeamViewer has resolved this issue in version 15.83 and newer releases, strongly urging all users to update their software immediately. According to the company's statement, there was no evidence of active exploitation in the wild when the security advisory was published.

Along with this patch, the update also addressed two additional security issues. This included a separate flaw in the macOS version that could have allowed a local attacker to bypass security checks during the package installation process and gain root access to the system.