CVE & CISA-KEV Catalog

CVE-2025-0624

HIGH
7.6
CVSS v3
NVD

Description

A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grub_strcpy() function. During this step, it fails to consider the environment variable length when allocating the internal buffer, resulting in an out-of-bounds write. If correctly exploited, this issue may result in remote code execution through the same network segment grub is searching for the boot information, which can be used to by-pass secure boot protections.

CWE-787Out-of-bounds Write

CVSS v3 Vector

Exploitability

Attack VectorAdjacent
Attack ComplexityHigh
Privileges RequiredHigh
User InteractionNone
ScopeChanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

1.37%probability of exploitation in 30 days
68thpercentile

Moderate risk: more likely to be exploited than 68% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-05-21.