CVE-2026-109390

State: Published
Severity: 9.8 Critical
Published: Oct 12, 2026
Updated: Oct 13, 2026
Reserved: Oct 12, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	mitre

Weaknesses

CWE-130 Improper Handling of Length Parameter Inconsistency

Affected Products

Product	Versions
AnyDeskAnyDesk	8.0.0 to before 8.0.3Affected

References

https://github.com/v12-security/pocs/tree/main/anydesk
https://anydesk.com/en/changelog/linux

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