{"id":"CVE-2026-109390","title":"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","summary":"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 p…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-130"],"vendor":"AnyDesk","product":"AnyDesk","affected":["AnyDesk >= 8.0.0 < 8.0.3"],"published":"2026-10-12","updated":"2026-10-16","sourceUpdated":"2026-10-16T17:25:57.940","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-109390","references":[{"url":"https://anydesk.com/en/changelog/linux","label":"cve@mitre.org"},{"url":"https://github.com/v12-security/pocs/tree/main/anydesk","label":"cve@mitre.org"},{"url":"https://github.com/v12-security/pocs/tree/main/anydesk","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.0161,"epssPercentile":0.75798,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2026-10-12T00:00:00+00:00"},"ingestedAt":"2026-10-12T15:55:08.158Z","slug":"CVE-2026-109390","body":"## Overview\n\nAnyDesk 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0.3,"exploitation":12,"ransomware":0},"changes":[{"seq":220813,"id":"CVE-2026-109390","ts":1792026823304,"field":"exploit_available","old":"false","new":"true"}]}