A flaw was found in grub2. The calculation of the translation buffer when reading a language .mo file in grub_gettext_getstr_from_position() may overflow, leading to a Out-of-bound write. This issue can be leveraged by an attacker to overwrite grub2's sensitive heap data, eventually leading to the circumvention of secure boot protections.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 6.7 · gnu, redhatNVD modified 2026-10-21 17:17
Affected (CPE criteria) 6
cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*cpe:2.3:a:redhat:openshift:4.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
References 3
- https://access.redhat.com/errata/RHSA-2025:20532
- https://access.redhat.com/security/cve/CVE-2024-45777 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2346343 Issue Tracking, Third Party Advisory