CVE-2020-8955
irc_mode_channel_update in plugins/irc/irc-mode.c in WeeChat through 2.7 allows remote attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other
02 Description
irc_mode_channel_update in plugins/irc/irc-mode.c in WeeChat through 2.7 allows remote attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 3.44% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 88.8% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2020-02-12 21:58Z6 YR AGO
- Last updated
- 2024-08-04 10:19Z2 YR AGO
- Reserved
- 2020-02-12
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base
- Data version
- 5.1
- Document digest
- c5a1b9df9cae60763ed366eddc8724154c3b404b89ee7166050b964515d93a43
05 Affected products
06 References
- weechat.orghttps://weechat.org/doc/security/
- github.comhttps://github.com/weechat/weechat/commit/6f4f147d8e86adf9ad34a8ffd7e7f1f23a7e74da
- lists.opensuse.orgopenSUSE-SU-2020:0248http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00032.html
- lists.fedoraproject.orgFEDORA-2020-4d232b48b8https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ASRTCQFFDAAK347URWNDH6NSED2BGNY/
- lists.fedoraproject.orgFEDORA-2020-db890b4800https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ER23GT23US5JXDLUZAMGMWXKZ74MI4S2/
- lists.debian.org[debian-lts-announce] 20200324 [SECURITY] [DLA 2157-1] weechat security updatehttps://lists.debian.org/debian-lts-announce/2020/03/msg00031.html
- security.gentoo.orgGLSA-202003-51https://security.gentoo.org/glsa/202003-51
- lists.fedoraproject.orgFEDORA-2020-d242130019https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M3LAJTLI3LWZRNCFYJ7PCBBTHUMCCBHH/
- lists.debian.org[debian-lts-announce] 20210930 [SECURITY] [DLA 2770-1] weechat security updatehttps://lists.debian.org/debian-lts-announce/2021/09/msg00018.html
07 Fixed in
Arch Linux
- weechat Fixed in 2.7.1-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- weechat Fixed in 2.7.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- weechat Fixed in 2.7.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- weechat Fixed in 2.7.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- weechat Fixed in 1.4-2ubuntu0.1+esm1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- weechat Fixed in 1.9.1-1ubuntu1+esm1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.