CVE-2020-9760

An issue was discovered in WeeChat before 2.7.1 (0.3.4 to 2.7 are affe ...

Published 23 Mar 2020Modified 17 Jun 2026CWE 120

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Ubuntu (medium).

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.

Affected packages and fixed versions

Source	Package	Fixed in
debian 10	weechat	2.3-1+deb10u1
debian 11	weechat	2.7.1-1
debian 12	weechat	2.7.1-1
debian 13	weechat	2.7.1-1
debian 14	weechat	2.7.1-1
debian 8	weechat	1.0.1-1+deb8u3
debian 9	weechat	1.6-1+deb9u3
echo	weechat	2.7.1-1
ubuntu 16.04-ESM	weechat	1.4-2ubuntu0.1+esm1
ubuntu 18.04-ESM	weechat	1.9.1-1ubuntu1+esm1

References

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Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.