TI-2025-00583 Aliases CVE-2025-0689 GHSA-q7w8-q2f9-vcmh

Grub2: udf: heap based buffer overflow in grub_udf_read_block() may lead to arbitrary code execution

LOW 37CWE-120Published 2025-03-03 · Updated 2026-11-05

Key facts

Attack vector: Local
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00498 42nd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	grub2	up to 2.12	—	No fix listed	CNA
Red Hat	Red Hat Enterprise Linux 10	—	—	Not affected	CNA
Red Hat	Red Hat Enterprise Linux 7	—	—	Not affected	CNA
Red Hat	Red Hat Enterprise Linux 8	—	—	Not affected	CNA
Red Hat	Red Hat Enterprise Linux 9	—	—	Not affected	CNA
Red Hat	Red Hat OpenShift Container Platform 4	—	—	Not affected	CNA
Red Hat	Red Hat OpenShift Container Platform 4	—	—	Not affected	CNA

grub2 Vendor— Affected up to 2.12 Fixed in — No fix listed CNA
Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in — Not affected CNA
Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — Not affected CNA
Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — Not affected CNA
Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in — Not affected CNA
Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — Not affected CNA
Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — Not affected CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:gnu:grub2::::::::	up to 2.12	Vulnerable	GNU

cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:* Versions up to 2.12 Vulnerable ·GNU

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 5 products

Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat OpenShift Container Platform 4

Timeline

2026-10-02 Threatist record created from CVE-2025-0689
2026-10-03 Alias added: GHSA-q7w8-q2f9-vcmh
2026-10-21 Affected versions changed · CNA

References

Advisory 3

TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8

See all 7413 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences