VULNERABILITY INTELLIGENCE

CVE-2021-26957

CVSS score9.8 CRITICAL
EPSS probability1.71%
CISA KEVNot currently listed
Published2021-02-09
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

An issue was discovered in the xcb crate through 2021-02-04 for Rust. It has a soundness violation because there is an out-of-bounds read in xcb::xproto::change_property(), as demonstrated by a format=32 T=u8 situation where out-of-bounds bytes are sent to an X server.

Weakness classification

  • CWE-125: Out-of-bounds Read

Primary references