What’s Vulnerable › Vulnerabilities

CVE-2024-45777: Grub2: grub-core/gettext: integer overflow leads to heap oob write.

• Severity: medium (CVSS 6.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-19 · updated 2026-10-21
• Weakness: CWE-787

Description

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.

Affected products

• grub2: through 2.12
• Red Hat Enterprise Linux: 7.0, 8.0, 9.0, 10.0
• Openshift: 4.0

References

• https://access.redhat.com/errata/RHSA-2025:20532
• https://access.redhat.com/security/cve/CVE-2024-45777
• https://bugzilla.redhat.com/show_bug.cgi?id=2346343

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