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No exploitation reportedFix available

CVE-2025-0689

No exploitation reported by the sources we read.

  • Published2025-03-03
  • WeaknessCWE-120

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

When reading data from disk, the grub's UDF filesystem module utilizes the user controlled data length metadata to allocate its internal buffers. In certain scenarios, while iterating through disk sectors, it assumes the read size from the disk is always smaller than the allocated buffer size which is not guaranteed. A crafted filesystem image may lead to a heap-based buffer overflow resulting in critical data to be corrupted, resulting in the risk of arbitrary code execution by-passing secure boot protections.

Timeline

dates in UTC
  1. 2025-03-0315:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 15:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-0689?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-0689?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Gnu grub2
BranchAffectedFixed in
2.12≤ 2.12no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA7 products

As redhat, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

1 more product in the CVE record.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-10-21

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • grubAlpaquita:streamfrom 2.06-r14 · fixed in 2.12-r10
  • grubAlpaquita:23from 2.06-r9 · fixed in 2.12-r8
  • grub2Ubuntu:Pro:14.04:LTSall versions · no fixed version listedand 1 other package
  • grub2TuxCare:CentOS:7all versions · fixed in 3:2.02-0.87.0.2.el7.centos.14.tuxcare.els9and 13 other packages
  • grub2SUSE:Manager Server Module 4.3all versions · fixed in 2.06-150400.11.55.2
  • grub2SUSE:Manager Server 4.3all versions · fixed in 2.06-150400.11.55.2
  • grub2SUSE:Manager Proxy Module 4.3all versions · fixed in 2.06-150400.11.55.2
  • grub2SUSE:Manager Proxy 4.3all versions · fixed in 2.06-150400.11.55.2

43 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2025-03-03
Last Modified
2026-10-21
NVD status
Modified
GitHub Advisory
GHSA-q7w8-q2f9-vcmh

Frequently asked questions

What is CVE-2025-0689?

When reading data from disk, the grub's UDF filesystem module utilizes the user controlled data length metadata to allocate its internal buffers. In certain scenarios, while iterating through disk sectors, it assumes the read size from the disk is always smaller than the allocated buffer size which is not guaranteed. A crafted filesystem image may lead to a heap-based buffer overflow resulting in critical data to be corrupted, resulting in the risk of arbitrary code execution by-passing secure boot protections.

Is CVE-2025-0689 actively exploited?

Active exploitation of CVE-2025-0689 has not been confirmed. Its EPSS score was 0.5% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-0689?

CVE-2025-0689 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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