CVE & CISA-KEV Catalog

CVE-2024-56738

MEDIUM
5.3
CVSS v3
NVD

Description

GNU GRUB (aka GRUB2) through 2.12 does not use a constant-time algorithm for grub_crypto_memcmp and thus allows side-channel attacks.

CWE-208CWE-203

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

0.38%probability of exploitation in 30 days
30thpercentile

Low risk: more likely to be exploited than 30% of all known CVEs.

References

Third-Party Advisory1
Embed a live status badge for CVE-2024-56738
CVE-2024-56738 severity badge

Markdown

[![CVE-2024-56738](https://tridentstack.com/cve/badge/CVE-2024-56738.svg)](https://tridentstack.com/cve/CVE-2024-56738)

HTML

<a href="https://tridentstack.com/cve/CVE-2024-56738"><img src="https://tridentstack.com/cve/badge/CVE-2024-56738.svg" alt="CVE-2024-56738"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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 2025-06-24.