Ubuntu Libefiboot vulnerabilities

1 vulnerability

Known vulnerabilities in Ubuntu Libefiboot, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

5.5CVE-2026-6862debianefivar+5
EPSS score
0.17%
A flaw was found in libefiboot, a component of efivar. The device path node parser in libefiboot fails to validate that each node's Length field is at least 4 bytes, which is the minimum size for an EFI (Extensible Firmware Interface) device path node header. A local user could exploit this vulnerability by providing a specially crafted device path node. This can lead to infinite recursion, causing stack exhaustion and a process crash, resulting in a denial of service (DoS).