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CVE-2026-34002

6.1 MEDIUM

A flaw was found in the X.Org X server

Published: 2026-05-05 · Last updated: 2026-06-08

Severity and scoring

CVSS
6.1 MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
CWE
CWE-805

Affected products

VendorProduct
redhatenterprise_linux, x_server
x.orgenterprise_linux, x_server

Description

A flaw was found in the X.Org X server. This vulnerability, an out-of-bounds read, affects the XKB (X Keyboard Extension) modifier map handling. An attacker with access to the X11 server can exploit this by sending a malformed request, which causes the server to read beyond its intended memory boundaries. This can lead to the exposure of sensitive information or cause the server to crash, resulting in a denial of service.

Source: NVD

References

Related CVEs

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  • CVE-2026-11788 — A flaw was found in 389 Directory Server (5.9 MEDIUM)
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  • CVE-2026-12087 — Socket versions before 2.041 for Perl have an out-of-bounds heap read