Out-of-bounds Read in Weechat
CVE-2021-40516
WeeChat before 3.2.1 allows remote attackers to cause a denial of service (crash) via a crafted WebSocket frame that trigger an out-of-bounds read in plugins/relay/relay-websocket.c in the Relay plugin.
Vulnerability class: Buffer Overflow
EPSS: 0.016 (73.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Weechat
- Debian Debian_linux — versions 10.0
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-40516?
- CVE-2021-40516 is a high-severity vulnerability in Weechat, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2021-09-05.
- How severe is CVE-2021-40516?
- High severity. CVSS v3 base score is 7.5 out of 10.