CVE-2026-109390
CRITICAL
CVSS 9.8
Published: 2026-10-12
Modified: 2026-10-13
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Threat Intelligence Pending
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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.
Quick Facts
| CVE ID | CVE-2026-109390 |
| CVSS Score | 9.8 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Published | 2026-10-12 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |