Security readout for executives and security teams
Plain-English summary
ImageMagick versions before the fixed releases can crash or corrupt memory when handling a specially crafted SIXEL image. The main business risk is disruption to services that automatically process untrusted images, such as upload pipelines or conversion services.
Executive priority
Treat this as a moderate operational reliability issue. Patch promptly where ImageMagick handles untrusted images, but current sources do not support emergency prioritization from known exploitation.
Technical view
The SIXEL decoder has a CWE-190 signed integer overflow during buffer reallocation. Signed 32-bit pointer arithmetic can overflow, causing memory corruption and denial of service. The affected ranges are ImageMagick 7.0.0 through before 7.1.2-15, and 6.x before 6.9.13-40.
Likely exposure
Exposure is most likely where vulnerable ImageMagick builds process untrusted or externally supplied image files, especially automated image conversion, upload, preview, or media-processing workflows.
Exploitation context
The provided sources do not cite active exploitation, and the CVE is not marked KEV. Exploitation requires processing a malicious SIXEL image with a vulnerable ImageMagick version. The documented impact is availability loss from memory corruption or denial of service.
Researcher notes
Do not assume code execution from the supplied evidence. The CVSS vector lists low availability impact only. Focus analysis on vulnerable version discovery, SIXEL decoder reachability, and whether untrusted input reaches ImageMagick without isolation.
Mitigation direction
- Upgrade ImageMagick 7.x to 7.1.2-15 or later.
- Upgrade ImageMagick 6.x to 6.9.13-40 or later.
- Prioritize internet-facing and user-upload image processing systems.
- Limit or disable untrusted SIXEL processing where feasible.
- Run image processing in isolated, resource-limited environments.
- Track the ImageMagick advisory for any revised guidance.
Validation and detection
- Inventory ImageMagick versions across hosts, containers, and build images.
- Identify services that process uploaded or externally supplied images.
- Confirm patched versions are deployed in runtime images, not only source manifests.
- Check whether SIXEL input is accepted or passed to ImageMagick.
- Review logs for unexplained ImageMagick crashes or worker restarts.
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-190: 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 lookupCVE-2026-25970 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
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L3.91.4GitHub_MVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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.
- 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
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-xg29-8ghv-v4xrCVE reference, GitHub_M · x_refsource_CONFIRM
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.
Integer Overflow or Wraparound
Integer Overflow or Wraparound represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.