Is CVE-2026-6862 actively exploited?

No active exploitation of CVE-2026-6862 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-6862 be exploited remotely?

No. CVE-2026-6862 requires local access to exploit.

What is the CVSS score of CVE-2026-6862?

CVE-2026-6862 has a CVSS score of 5.5 (MEDIUM).

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MEDIUM

CVE-2026-6862

CWE-674Published: April 22, 2026· Updated: Apr 22, 2026

5.5

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.1th

Official Description

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).

NVD Source

Technical Analysis

CVE-2026-6862 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.