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Case File

CVE-2020-28049

MEDIUM · CVSS 6.3 EPSS 0.42% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-11-04 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.3. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2020-28049
Severity
MEDIUM
CVSS
6.3
EPSS
0.42%

Original NVD Description

An issue was discovered in SDDM before 0.19.0. It incorrectly starts the X server in a way that - for a short time period - allows local unprivileged users to create a connection to the X server without providing proper authentication. A local attacker can thus access X server display contents and, for example, intercept keystrokes or access the clipboard. This is caused by a race condition during Xauthority file creation.

Related CVEs

Other vulnerabilities affecting the same vendor(s)