CVE-2023-5380
4.7 · MEDIUMOverview
CVE-2023-5380 is a medium-severity vulnerability affecting x.org x_server. It was published on October 25, 2023 and has a CVSS 3.1 base score of 4.7 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
A use-after-free flaw was found in the xorg-x11-server. An X server crash may occur in a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode) if the pointer is warped from within a window on one screen to the root window of the other screen and if the original window is destroyed followed by another window being destroyed.
Remediation
Check the references section for vendor advisories and patches from x.org. Update x_server 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 |
|---|---|---|---|
| x.org | x_server | >= 0, < 21.1.9 | Affected |
| x.org | xwayland | >= 0, < 23.2.2 | Affected |
References
Frequently Asked Questions
What is CVE-2023-5380?
CVE-2023-5380 is a medium-severity vulnerability affecting x.org x_server. It was published on October 25, 2023 and has a CVSS 3.1 base score of 4.7 (MEDIUM).
How severe is CVE-2023-5380?
This vulnerability has a CVSS 3.1 base score of 4.7, 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-2023-5380?
Check the references section for vendor advisories and patches from x.org. Update x_server 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-2023-5380?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-5380 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.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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