CVE-2021-40516
7.5
HIGH
CVSS 3.1
EPSS 0.97%
Description
WeeChat before 3.2.1 allows remote attackers to cause a denial of service (crash) via a crafted WebSocket frame that trigger an out-of-bounds read in plugins/relay/relay-websocket.c in the Relay plugin.
How to fix CVE-2021-40516
To remediate CVE-2021-40516, upgrade the affected package to a fixed version below.
- Debian/weechat—upgrade to 3.0-1+deb11u1 or later
Is CVE-2021-40516 being exploited?
Low — EPSS is 1.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.0-1+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |