All vulnerabilities
CVE-2026-109390

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 appro

AnyDesk AnyDesk
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 12 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)1.61%Chance of exploitation activity in the next 30 days, higher than 75% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in8.0.3Fixed versionCVE List
Published12 Oct 2026Updated 13 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 1

  • AnyDeskaffected: 8.0.0 before 8.0.3CVE List

References 2