Security readout for executives and security teams
Plain-English summary
CVE-2024-45774 is a GRUB2 bootloader JPEG parsing bug. A crafted JPEG can trigger a heap out-of-bounds write while GRUB is processing images. The main concern is boot-chain integrity: Red Hat notes Secure Boot bypass cannot be ruled out. Exploitation requires local/high-privilege conditions, so this is not a typical internet-facing emergency.
Executive priority
Schedule remediation through normal security patch cycles, with faster handling for systems relying on Secure Boot or hosting sensitive workloads. The issue is serious for platform integrity but constrained by local/high-privilege prerequisites and no cited active exploitation.
Technical view
The flaw is in GRUB2 reader/jpeg bounds checking. During JPEG parsing, internal buffer limits can be checked incorrectly, causing a heap out-of-bounds write classified as CWE-787. CVSS 3.1 is 6.7 with Local attack vector, Low complexity, High privileges, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Most likely exposed assets are Red Hat systems using affected GRUB2 or RHCOS components: RHEL 8, RHEL 9 package 1:2.06-104.el9_6, and OpenShift Container Platform 4/RHCOS. RHEL 10 is listed unaffected; RHEL 7 status is unknown in the provided data.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. The CVSS vector requires local access and high privileges, with no user interaction. The stated Secure Boot bypass concern is a possibility, not confirmed exploitation or a guaranteed outcome.
Researcher notes
Focus analysis on GRUB2 JPEG parser bounds handling and boot-time image processing. The public description supports heap OOB write and potential Secure Boot implications, but does not provide exploit confirmation, affected non-Red Hat distributions, or detailed fixed package versions in the supplied bundle.
Mitigation direction
- Review Red Hat RHSA-2025:6990 and the Red Hat CVE page for applicable updates.
- Patch affected RHEL and OpenShift/RHCOS assets through vendor-supported update channels.
- Prioritize systems where boot-chain integrity and Secure Boot assurance are business critical.
- Treat RHEL 7 exposure as unresolved until vendor status is confirmed.
- Avoid assuming non-Red Hat impact beyond the provided source data.
Validation and detection
- Inventory GRUB2 and RHCOS package versions across RHEL and OpenShift assets.
- Map assets to the affected product statuses in the Red Hat CVE record.
- Confirm whether Secure Boot is relied on for high-value endpoints or servers.
- Check change records for deployment of RHSA-2025:6990 or later vendor guidance.
- Track RHEL 7 separately because its status is listed as unknown.
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-2024-45774 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-2025:6990CVE reference, redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2024-45774CVE reference, redhat · vdb-entry, x_refsource_REDHAT
- RHBZ#2337461CVE reference, redhat · issue-tracking, x_refsource_REDHAT
- https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.htmlCVE reference, 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.