CVE-2026-56001
8.5 · HIGHOverview
CVE-2026-56001 is a high-severity vulnerability affecting x libxfont. It was published on July 8, 2026 and has a CVSS 3.1 base score of 8.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the X Server to execute code within the X server cont
Remediation
Check the references section for vendor advisories and patches from x. Update libxfont 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 | libxfont | >= 2.0.0, < 2.0.8 | Affected |
Frequently Asked Questions
What is CVE-2026-56001?
CVE-2026-56001 is a high-severity vulnerability affecting x libxfont. It was published on July 8, 2026 and has a CVSS 3.1 base score of 8.5 (HIGH).
How severe is CVE-2026-56001?
This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-56001?
Check the references section for vendor advisories and patches from x. Update libxfont 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-2026-56001?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-56001 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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