Security readout for executives and security teams
Plain-English summary
CVE-2026-25798 affects ImageMagick, a common image-processing library. A specially crafted image can crash applications that use vulnerable ImageMagick versions. The reported impact is denial of service, not data theft or code execution. Patched versions are 7.1.2-15 and 6.9.13-40.
Executive priority
Treat as a moderate availability risk. Prioritize patching for customer-facing image upload, resizing, or conversion services because exploitation could interrupt service. It is less urgent than vulnerabilities enabling takeover or data theft, based on current evidence.
Technical view
A NULL pointer dereference (CWE-476) in ImageMagick’s ClonePixelCacheRepository can be triggered through crafted image input. The CVSS 3.1 score is 5.3 with network attack vector, low complexity, no privileges, and no user interaction. Impact is limited to availability. Affected versions are 7.x before 7.1.2-15 and 6.x before 6.9.13-40.
Likely exposure
Exposure is most likely where servers, APIs, CMS platforms, or backend jobs process untrusted images using ImageMagick. Internet-facing upload or conversion workflows are higher priority. Systems not processing external image files are less likely to be affected.
Exploitation context
The source bundle describes remote crash potential via crafted image input. It does not report code execution, data compromise, or active exploitation. The CVE is not marked as CISA KEV in the provided data.
Researcher notes
Evidence is limited to the CVE record and ImageMagick advisory reference in the bundle. The vulnerability is characterized as a NULL pointer dereference in ClonePixelCacheRepository with availability-only impact. No exploit details, proof of concept, or exploitation-in-the-wild evidence were provided.
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 systems that process untrusted or internet-supplied images.
- Check vendor advisory and package maintainers for distribution-specific updates.
Validation and detection
- Inventory applications and containers that include ImageMagick.
- Identify installed ImageMagick major and patch versions.
- Confirm vulnerable versions are not present in production images or hosts.
- Review upload and image-conversion services for untrusted input exposure.
- Verify patched versions after deployment through asset or dependency records.
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-476: Exact CWE lookup
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Open ATT&CK lookupCVE-2026-25798 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.
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:L3.91.4Primary CVE scoreVulnerability 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
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-p863-5fgm-rgq4CVE reference · 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.
NULL Pointer Dereference
NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.