CVE-2026-109390 Memory corruption in AnyDesk
Unauthenticated remote attackers can execute arbitrary code as root via a heap-based buffer overflow in AnyDesk without user approval.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-109390?
CVE-2026-109390 is a critical memory corruption vulnerability in AnyDesk, published on 12 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-130
Which versions are affected by CVE-2026-109390?
How do I fix CVE-2026-109390?
No fix has been published for CVE-2026-109390 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-109390 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-109390 exists.
Sources
Also known as GHSA-p2jv-fpmf-jqjw.