CVE-2020-14345

7.8 highEPSS 0.6%

High (7.8). EPSS 0.6% chance of exploitation in the next 30 days.

A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Out-Of-Bounds access in XkbSetNames function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Severity

CVSS 3.1

7.8 high

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

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-11-01)
CWE: CWE-119
Published: 2020-09-15
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

canonical:ubuntu_linux
x.org:x_server

References

http://www.openwall.com/lists/oss-security/2021/01/15/1
https://bugzilla.redhat.com/show_bug.cgi?id=1862241
https://lists.x.org/archives/xorg-announce/2020-August/003058.html
https://security.gentoo.org/glsa/202012-01
https://usn.ubuntu.com/4488-2/

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