Grub2: reiserfs: integer overflow when handling symlinks may lead to heap based out-of-bounds write when reading data — CVE-2025-0684

Summary

Advisory CVE-2025-0684. Grub2: reiserfs: integer overflow when handling symlinks may lead to heap based out-of-bounds write when reading data Vendor: Microsoft. Source: MSRC. Threat: medium. CVSS 6.4. See the official advisory for details.

What to do

General, cautious steps (verify details in the official source):

• Review exposure and plan remediation based on risk and environment.
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

Read the official source

Related advisories