CVE-2021-4008

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcRenderCompositeGlyphs function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-119

Affected software

No affected versions have been published.

Timeline

Published
Dec 17, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-400837.5Knot Resolver before 5.3.2 is prone to an assertion failure, triggerable by a remote attacker in an edge case (NSEC3 with too many iterationCVE-2021-400849.8opensysusers through 0.6 does not safely use eval on files in sysusers.d that may contain shell metacharacters. For example, it allows commaCVE-2021-400856.5An issue was discovered in OpenStack Neutron before 16.4.1, 17.x before 17.2.1, and 18.x before 18.1.1. Authenticated attackers can reconfigCVE-2021-400862.2An issue was discovered in PrimeKey EJBCA before 7.6.0. As part of the configuration of the aliases for SCEP, CMP, EST, and Auto-enrollment,CVE-2021-400872.7An issue was discovered in PrimeKey EJBCA before 7.6.0. When audit logging changes to the alias configurations of various protocols that useCVE-2021-400885.4An issue was discovered in PrimeKey EJBCA before 7.6.0. CMP RA Mode can be configured to use a known client certificate to authenticate enroCVE-2021-400892.3An issue was discovered in PrimeKey EJBCA before 7.6.0. The General Purpose Custom Publisher, which is normally run to invoke a local scriptCVE-2021-40097.8A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcXFixesCreateCVE-2021-400919.8An SSRF issue was discovered in SquaredUp for SCOM 5.2.1.6654.CVE-2021-400925.4A cross-site scripting (XSS) vulnerability in Image Tile in SquaredUp for SCOM 5.2.1.6654 allows remote attackers to inject arbitrary web scCVE-2021-400935.4A cross-site scripting (XSS) vulnerability in integration configuration in SquaredUp for SCOM 5.2.1.6654 allows remote attackers to inject aCVE-2021-400945.4A DOM-based XSS vulnerability affects SquaredUp for SCOM 5.2.1.6654. If successfully exploited, this vulnerability may allow attackers to in
CVE-2021-4008: High severity, CVSS 7.8 | Vulnix