Detections
Analytics

CVE-2021-26955

critical

Description

An issue was discovered in the xcb crate through 2021-02-04 for Rust. It has a soundness violation because xcb::xproto::GetAtomNameReply::name() calls std::str::from_utf8_unchecked() on unvalidated bytes from an X server.

References

https://github.com/advisories/GHSA-3288-cwgw-ch86

https://rustsec.org/advisories/RUSTSEC-2021-0019.html

https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-1523

Details

Source: Mitre, NVD

Published: 2021-02-09

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.01728