CVE-2021-40516

—

CVSS 3.1

7.5 high

EPSS

2%p74

Published

Sep 5, 2021 (Sep 5, 2021)

Modified

Jun 17, 2026

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.

Vendors: weechat debian
Products: weechat, debian linux
Weakness: CWE-125
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (1.6%)

In the news0 stories

No ingested article mentions this CVE yet.