CVE-2020-14346

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CVSS 3.1

7.8 high

EPSS

<1%p48

Published

Sep 15, 2020 (Sep 15, 2020)

Modified

Jun 17, 2026

Description

A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Vendors: x.org canonical redhat
Products: x server, ubuntu linux, enterprise linux
Weakness: CWE-191
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.6%)

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