CVE-2020-28049
6.3 · MEDIUMOverview
CVE-2020-28049 is a medium-severity vulnerability affecting sddm_project sddm. It was published on November 4, 2020 and has a CVSS 3.1 base score of 6.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from sddm_project. Update sddm to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| sddm_project | sddm | >= 0, < 0.19.0 | Affected |
References
Frequently Asked Questions
What is CVE-2020-28049?
CVE-2020-28049 is a medium-severity vulnerability affecting sddm_project sddm. It was published on November 4, 2020 and has a CVSS 3.1 base score of 6.3 (MEDIUM).
How severe is CVE-2020-28049?
This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-28049?
Check the references section for vendor advisories and patches from sddm_project. Update sddm to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-28049?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-28049 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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