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CVE Record

CVE-2026-25968: ImageMagick has MSL attribute stack buffer overflow that leads to out of bounds write.

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a stack buffer overflow occurs when processing the an attribute in msl.c. A long value overflows a fixed-size stack buffer, leading to memory corruption. Versions 7.1.2-15 and 6.9.13-40 contain a patch.

HighCVSS 7.4Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

ImageMagick versions before the fixed releases can corrupt memory when handling a long MSL attribute value. Businesses are exposed where ImageMagick processes attacker-supplied files or content. The published record rates this high severity, but the supplied sources do not show active exploitation.

Executive priority

Prioritize remediation for internet-facing or customer-file-processing systems. The issue is high severity because memory corruption can affect confidentiality and availability, but current supplied evidence does not support emergency active-exploitation language.

Technical view

CVE-2026-25968 is a CWE-121 stack buffer overflow in ImageMagick msl.c attribute processing. A long attribute value can overflow a fixed-size stack buffer, causing an out-of-bounds write and memory corruption. CVSS 3.1 is 7.4 with network attack vector, high complexity, no privileges, and no user interaction.

Likely exposure

Exposure is likely in applications, workers, upload pipelines, or automation that use ImageMagick 7.0.0 before 7.1.2-15 or 6.x before 6.9.13-40, especially where externally supplied image or MSL-related input is processed.

Exploitation context

The source bundle does not identify active exploitation, public exploit use, or KEV listing. The CVSS vector indicates remote reachability without privileges or user interaction, but high attack complexity. Treat exploitability as plausible only where vulnerable MSL processing is reachable.

Researcher notes

Focus analysis on reachable MSL parser paths and packaged ImageMagick versions. The available sources name the vulnerable file and condition, but do not provide exploit maturity, proof-of-concept status, or operational mitigations beyond patched versions.

Mitigation direction

  • Upgrade ImageMagick 7.x to version 7.1.2-15 or later.
  • Upgrade ImageMagick 6.x to version 6.9.13-40 or later.
  • Check the GitHub advisory for vendor-specific upgrade guidance.
  • Prioritize systems processing untrusted uploads or automated image conversions.

Validation and detection

  • Inventory installed ImageMagick versions across servers, containers, and build images.
  • Confirm no ImageMagick package is below 7.1.2-15 or 6.9.13-40.
  • Identify services that pass external content into ImageMagick processing paths.
  • Review dependency lockfiles and base images for bundled ImageMagick versions.
Prepared
Confidence
high
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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

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cwe · low confidence lookup

CWE-121: Exact CWE lookup

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cve · low confidence lookup

CVE-2026-25968 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.4 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H

Official CVE source material

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.

1CVSS vectors
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical Impact: partial

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
7.4CVSS 3.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H2.25.2GitHub_M

Vulnerability scoring details

Base CVSS 3.1 score

7.4High
CVSS 3.1 vector shape for CVE-2026-25968Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
ImageMagickImageMagick>= 7.0.0, < 7.1.2-15, < 6.9.13-40Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-121 · source CWE mapping

Stack-based Buffer Overflow

Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.