Security readout for executives and security teams
Plain-English summary
GRUB2 can mishandle a crafted language translation file during bootloader processing. On affected Red Hat platforms, a highly privileged local attacker could use this memory corruption to read or overwrite sensitive bootloader data, with possible Secure Boot bypass implications.
Executive priority
Treat as moderate operational priority. It is not remotely exploitable from the supplied evidence, but affected boot infrastructure can undermine platform trust if an attacker already has high local privileges.
Technical view
In grub_mofile_open(), GRUB2 does not verify integer overflow during internal buffer allocation for .mo files. The resulting undersized allocation can cause heap out-of-bounds reads and writes. Red Hat rates this CVSS 6.7, requiring local access and high privileges, with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most relevant to affected Red Hat Enterprise Linux 9 and 10 grub2 packages, plus Red Hat OpenShift Container Platform 4 through RHCOS. RHEL 7 and 8 are listed as unaffected in the provided data.
Exploitation context
The source bundle does not show active exploitation, and CISA KEV status is false. Exploitation requires local access with high privileges and a crafted .mo file, but impact may reach boot integrity and Secure Boot protections.
Researcher notes
Key uncertainty is fixed-version detail because the bundle names advisories but not explicit remediation versions. Do not assume exploit availability. Focus validation on package state, platform applicability, and privileged write paths to GRUB translation files.
Mitigation direction
- Review Red Hat guidance for CVE-2024-45776 and the linked RHSAs.
- Apply applicable Red Hat grub2 or RHCOS security updates for affected platforms.
- Prioritize systems where administrators or automation can modify bootloader files.
- Restrict unnecessary privileged local access to bootloader-related paths.
- Track OpenShift remediation through the applicable RHCOS advisory path.
Validation and detection
- Inventory RHEL 9, RHEL 10, and OpenShift 4 assets using grub2 or RHCOS.
- Compare installed package versions against Red Hat CVE and errata guidance.
- Confirm RHEL 7 and RHEL 8 assets are not treated as affected from this bundle.
- Check whether privileged local users can modify GRUB language files.
- Document Secure Boot-dependent systems for priority remediation tracking.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-787: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupContainer behavior lookup
The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2024-45776 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H0.85.9redhatVulnerability scoring details
Base CVSS 3.1 score
6.7MediumVector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- Source timelineredhat
Reported to Red Hat.
- Source timelineredhat
Made public.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- RHSA-2025:16154CVE reference, redhat · vendor-advisory, x_refsource_REDHAT
- RHSA-2025:6990CVE reference, redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2024-45776CVE reference, redhat · vdb-entry, x_refsource_REDHAT
- RHBZ#2339182CVE reference, redhat · issue-tracking, x_refsource_REDHAT
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.