Security readout for executives and security teams
Plain-English summary
A GIF image parsing flaw in GIMP can overflow memory when an affected build processes a specially crafted GIF. The reported impact is denial of service or possible arbitrary code execution. Business risk is highest where affected Red Hat systems use GIMP to open externally supplied images.
Executive priority
Treat as a high-priority endpoint and workstation remediation item, not as proven mass exploitation. Prioritize affected systems used by staff or processes that receive external image files, and track vendor update availability closely.
Technical view
CVE-2026-6384 is a CWE-120 buffer overflow in GIMP's GIF loader, specifically the ReadJeffsImage function. Red Hat lists RHEL 6 gimp and RHEL 8 gimp:2.8/gimp as affected, while RHEL 7 and RHEL 9 are listed unaffected. CVSS 3.1 is 7.3 high with local attack vector and required user interaction.
Likely exposure
Exposure is likely limited to systems running the affected Red Hat GIMP packages, especially workstations or image-processing workflows that handle untrusted GIF files. The bundle does not identify other vendors, upstream GIMP versions, or internet-facing service exposure.
Exploitation context
The sources do not show CISA KEV listing or confirmed active exploitation. Exploitation requires an affected GIMP component to process a crafted GIF, with user interaction indicated by the CVSS vector. No public exploit details are provided in the bundle.
Researcher notes
Evidence is source-limited. The bundle names ReadJeffsImage, GIF processing, buffer overflow, and potential code execution or denial of service. It does not include a patch version, proof of concept, exploitation telemetry, or affected non-Red Hat builds.
Mitigation direction
- Inventory Red Hat systems for affected GIMP packages.
- Apply Red Hat vendor fixes when available.
- Avoid opening untrusted GIF files in affected GIMP installations.
- Remove GIMP from systems where it is not operationally required.
- Monitor Red Hat CVE, Bugzilla, and CSAF records for update status.
Validation and detection
- Confirm whether hosts run RHEL 6 or RHEL 8 affected GIMP packages.
- Verify RHEL 7 and RHEL 9 status against Red Hat records.
- Review image-handling workflows for untrusted GIF processing.
- Check vendor advisories for available fixed package versions.
- Record compensating controls where patching is delayed.
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-120: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-6384 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
- High
- CVSS
- 7.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/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
2 official scoresWe 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:L/UI:R/S:U/C:H/I:H/A:H1.35.9redhatCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H1.35.9redhat-SADPVulnerability scoring details
Base CVSS 3.1 score
7.3HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Base CVSS 3.1 score
7.3HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/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.
- ADP timelineredhat-SADP
Reported to Red Hat.
- Source timelineredhat
Reported to Red Hat.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- ADP timelineredhat-SADP
Made public.
- 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
- 2026-04-15T18:35:04.493Z: Reported to Red Hat.
- 2026-04-15T18:41:34.577Z: Made public.
Source materials
- CVE List V5 sourceCVE List V5
- https://access.redhat.com/security/cve/CVE-2026-6384CVE reference, redhat · vdb-entry, x_refsource_REDHAT
- RHBZ#2458749CVE reference, redhat · issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6384.jsonCVE reference, redhat-SADP · x_sadp-csaf-vex
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.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.