CVE-2023-4949
8.1 · HIGHOverview
CVE-2023-4949 is a high-severity vulnerability affecting gnu grub. It was published on November 10, 2023 and has a CVSS 3.1 base score of 8.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
An attacker with local access to a system (either through a disk or external drive) can present a modified XFS partition to grub-legacy in such a way to exploit a memory corruption in grub’s XFS file system implementation.
Remediation
Check the references section for vendor advisories and patches from gnu. Update grub 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 |
|---|---|---|---|
| gnu | grub | 0 | Affected |
Frequently Asked Questions
What is CVE-2023-4949?
CVE-2023-4949 is a high-severity vulnerability affecting gnu grub. It was published on November 10, 2023 and has a CVSS 3.1 base score of 8.1 (HIGH).
How severe is CVE-2023-4949?
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2023-4949?
Check the references section for vendor advisories and patches from gnu. Update grub 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-2023-4949?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-4949 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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