USN-4656-1: xorg-server Ubuntu
CVSS: UnknownPublished
Published 01-12-2020Last modified 22-04-2026
Vulnerability summary
USN-4656-1 is a vulnerability in xorg-server Ubuntu with no CVSS score yet.
CVSS score
Not scored
010
No CVSS score recordedEPSS score
Not scored
0%100%
No EPSS score yetKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 2 · Downstream 0 · Related 2Timeline
- 01-12-2020PublishedVulnerability first disclosed.
- 22-04-2026Last modifiedVulnerability information updated.
Description
xorg-server, xorg-server-hwe-16.04, xorg-server-hwe-18.04 vulnerabilities Jan-Niklas Sohn discovered that the X.Org X Server XKB extension incorrectly handled certain inputs. A local attacker could possibly use this issue to escalate privileges.
CVSS metrics
Risk metrics not yet published.
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu3 products
- xorg-server< 2:1.18.4-0ubuntu0.11 | < 2:1.19.6-1ubuntu4.8 | < 2:1.20.8-2ubuntu2.6
- xorg-server-hwe-16.04< 2:1.19.6-1ubuntu4.1~16.04.5
- xorg-server-hwe-18.04< 2:1.20.8-2ubuntu2.2~18.04.4
1 vendor · 3 products