Critical
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 approving desktop control. In the stream packet handler for mode 5 in the session protocol, a payload length value is not validated.
Announced Source revision 1
Original source ↗CVE-2026-109390
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-109390
AnyDesk
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "AnyDesk",
"product": "AnyDesk",
"versions": [
{
"status": "affected",
"version": "8.0.0",
"lessThan": "8.0.3",
"versionType": "semver"
}
],
"platforms": [
"Linux"
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-109390
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #17176 · Revision 1
- Added to Heist Feed
- Publisher date