AUGUST 4, 2026
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Case File

CVE-2021-4008

HIGH · CVSS 7.8 EPSS 0.56%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-17 · Last synced 2026-08-04

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CVE
CVE-2021-4008
Severity
HIGH
CVSS
7.8
EPSS
0.56%

Original NVD 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.