Vulnerability in Weechat
CVE-2022-28352
WeeChat (aka Wee Enhanced Environment for Chat) 3.2 to 3.4 before 3.4.1 does not properly verify the TLS certificate of the server, after certain GnuTLS options are changed, which allows man-in-the-middle attackers to spoof a TLS chat server via an arbitrary certificate. NOTE: this only affects situations where weechat.network.gnutls_ca_system or weechat.network.gnutls_ca_user is changed without a WeeChat restart.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (35.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- weechat.org/doc/security/WSA-2022-1/ (Exploit, Vendor Advisory)
- github.com/weechat/weechat/issues/1763 (Exploit, Third Party Advisory, Mitigation, Issue Tracking)
Frequently asked questions
- What is CVE-2022-28352?
- CVE-2022-28352 is a medium-severity vulnerability in Weechat, classified under Improper Certificate Validation. CVSS score: 4.3/10. Published 2022-04-02.
- How severe is CVE-2022-28352?
- Medium severity. CVSS v3 base score is 4.3 out of 10.