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Vulnerability record · CVE-2026-109390 · published 12 October 2026

CVE-2026-109390: AnyDesk before 8.0.3 allows unauthenticated remote attackers to execute arbitrary code via a heap-based buffer…

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.

9.8 CVSS 3.1 Critical EPSS 1.6% · top 24.7% CWE-130 · CWE-130 Received
9.8CVSS 3.1 base score
1.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
13 Oct 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.7CVE-2025-14847MongoDB Server heap memory disclosure via compressed protocol headersMismatched length fields in Zlib-compressed protocol headers let an unauthenticated client trigger a read of uninitialized heap memory in MongoDB Ser…KEVEPSS 83%analysed

Source: NIST National Vulnerability Database (record CVE-2026-109390), CISA KEV, FIRST EPSS (scores of 2026-10-13). This page is refreshed as NVD updates the record.