AUGUST 4, 2026
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Case File

CVE-2021-26955

CRITICAL · CVSS 9.8 EPSS 1.73%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-02-09 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. See the original NVD description below for full technical details.

CVE
CVE-2021-26955
Severity
CRITICAL
CVSS
9.8
EPSS
1.73%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)