CVE-2021-26956 describes a critical soundness violation in the Rust xcb crate (through 2021-02-04), where bytes received from an X server can be improperly interpreted as arbitrary data types. This vulnerability carries a CVSS score of 9.8 (CRITICAL), indicating a severe impact with high confidentiality, integrity, and availability compromise, and can be exploited remotely without user interaction. Despite its high severity, there is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2021-02-04CPE matchmatch criteria | cpe:2.3:a:xcb_project:xcb:*:*:*:*:*:rust:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.