Critical severity9.8NVD Advisory· Published Oct 12, 2026
CVE-2026-109390
CVE-2026-109390
Description
AnyDesk before 8.0.3 allows unauthenticated remote attackers to execute arbitrary code via a heap-based buffer overflow, as demonstrated on Linux for command execution as root without the victim approving desktop control. In the stream packet handler for mode 5 in the session protocol, a payload length value is not validated.
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Affected products
1Patches
Vulnerability mechanics
References
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