Answer in brief
CVE-2024-45777 records a Medium severity (CVSS 6.7) vulnerability in Grub2: grub-core/gettext: integer overflow leads to heap oob write.. The current sources do not mark it as known exploited. The current feed maps grub2 (generic), Red Hat/grub2 (generic), Red Hat/openshift/ose-rhel-coreos-9 (generic), Red Hat/rhcos (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps grub2 (generic), Red Hat/grub2 (generic), Red Hat/openshift/ose-rhel-coreos-9 (generic), Red Hat/rhcos (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:redhat:openshift:4.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| grub2generic | >=0 <=2.12 | Not reported |
| Red Hat/grub2generic | * | Not reported |
| Red Hat/openshift/ose-rhel-coreos-9generic | * | Not reported |
| Red Hat/rhcosgeneric | * | Not reported |
Published upstream
Feb 19, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
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.
Quoted source text, attributed separately from HOL analysis.