VULNERABILITY INTELLIGENCE

CVE-2020-14346

CVSS score7.8 HIGH
EPSS probability0.63%
CISA KEVNot currently listed
Published2020-09-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • secalert@redhat.com: CWE-191
  • nvd@nist.gov: CWE-191

Primary references