Critical severity9.8NVD Advisory· Published Mar 23, 2020· Updated Jun 17, 2026

CVE-2020-9760

Description

An issue was discovered in WeeChat before 2.7.1 (0.3.4 to 2.7 are affected). When a new IRC message 005 is received with longer nick prefixes, a buffer overflow and possibly a crash can happen when a new mode is set for a nick.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Weechat/Weechat2 versions
cpe:2.3:a:weechat:weechat:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:weechat:weechat:*:*:*:*:*:*:*:*range: >=0.3.4,<2.7.1
- (no CPE)range: <2.7.1
Debian/linux2 versions
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
WeeChat/WeeChatdescription

Patches

Vulnerability mechanics

References

github.com/weechat/weechat/commit/40ccacb4330a64802b1f1e28ed9a6b6d3ca9197fnvdPatchThird Party Advisory
lists.debian.org/debian-lts-announce/2020/03/msg00031.htmlnvdMailing ListThird Party Advisory
lists.debian.org/debian-lts-announce/2021/09/msg00018.htmlnvdMailing ListThird Party Advisory
security.gentoo.org/glsa/202003-51nvdThird Party Advisory
weechat.org/doc/security/nvdVendor Advisory

News mentions

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cvss	0.637
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000