CVE-2026-109390 AnyDesk - Remote Code Execution

AnyDesk < 8.0.3 contains a heap-based buffer overflow caused by unvalidated payload length in the stream packet handler for mode 5 in the session protocol, letting unauthenticated remote attackers execute arbitrary code as root without victim approval.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
1.61% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution, Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
12 October 2026
Updated
15 October 2026
Weakness
CWE-130

Vendor fix

Upgrade to version 8.0.3 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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