CVE-2017-18922
CRITICAL9.8EPSS 6.9%Published: 6/30/2020Modified: 4/28/2026
Also known as:DEBIAN-CVE-2017-18922
Description
It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not properly decode certain WebSocket frames. A malicious attacker could exploit this by sending specially crafted WebSocket frames to a server, causing a heap-based buffer overflow.
Affected packages (1)
- Debian/libvncserverfrom 0, < 0.9.12+dfsg-3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |