4.4

CVE-2025-1118: grub2 Trust Boundary Violation

CVSS: 4.4v3.1MediumDeferred
AliasesUBUNTU-CVE-2025-1118DEBIAN-CVE-2025-1118
Published 19-02-2025Last modified 13-10-2026
Open JSON

Vulnerability summary

CVE-2025-1118 is a medium (CVSS 4.4) Trust Boundary Violation vulnerability in grub2. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23.6% of scored vulnerabilities.

Overall risk
18/100
0100
Low · default modelHow is this calculated?
CVSS score
4.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.32%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 9
OPENSUSE-SU-2025:14822-1RHSA-2025:16154SUSE-SU-2025:01961-1SUSE-SU-2025:0586-1SUSE-SU-2025:0587-1SUSE-SU-2025:0588-1

Timeline

  1. 19-02-2025
    PublishedVulnerability first disclosed.
  2. 13-10-2026
    Last modifiedVulnerability information updated.

Description

A flaw was found in grub2. Grub's dump command is not blocked when grub is in lockdown mode, which allows the user to read any memory information, and an attacker may leverage this in order to extract signatures, salts, and other sensitive information from the memory.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.32%

Chance of exploitation in the next 30 days

Percentile

24%

Versus all other CVEs

30-day change

0.00 pp

From 0.32% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.32%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu3 products
  • grub2All versions (No fix recorded)
  • grub2-signedAll versions (No fix recorded)
  • grub2-unsignedAll versions (No fix recorded)
Debian1 product
  • grub2< 2.06-13+deb12u2 | < 2.12-6

2 vendors · 4 products

References

9 links