CVE-2020-9760

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.

• CWE-120

• https://github.com/weechat/weechat/commit/40ccacb4330a64802b1f1e28ed9a6b6d3ca9197fPatch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/03/msg00031.htmlMailing List, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/09/msg00018.htmlMailing List, Third Party Advisory
• https://security.gentoo.org/glsa/202003-51Third Party Advisory
• https://weechat.org/doc/security/Vendor Advisory
• https://github.com/weechat/weechat/commit/40ccacb4330a64802b1f1e28ed9a6b6d3ca9197fPatch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/03/msg00031.htmlMailing List, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/09/msg00018.htmlMailing List, Third Party Advisory
• https://security.gentoo.org/glsa/202003-51Third Party Advisory
• https://weechat.org/doc/security/Vendor Advisory

Published

Mar 23, 2020

Last Modified

Jun 17, 2026

Status

Modified

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