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PatchSiren cyber security CVE debrief

CVE-2026-56372 ImageMagick CVE debrief

CVE-2026-56372 is a heap buffer overflow vulnerability in the magnify operation of ImageMagick before version 7.1.2-19. The vulnerability allows attackers to read out of bounds memory, potentially exposing sensitive information or causing denial of service. An unrecognized magnify:method value triggers an out of bounds read. This issue affects users and administrators of ImageMagick, especially those using versions before 7.1.2-19, who should be aware of this vulnerability and take necessary precautions to mitigate the risk. The vulnerability has a CVSS score of 4.8 and a severity of MEDIUM.

Vendor
ImageMagick
Product
Unknown
CVSS
MEDIUM 4.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-11
Original CVE updated
2026-07-13
Advisory published
2026-07-11
Advisory updated
2026-07-13

Who should care

Users and administrators of ImageMagick, especially those using versions before 7.1.2-19, should be aware of this vulnerability and take necessary precautions to mitigate the risk. This includes reviewing affected product deployments, planning vendor-supported updates or mitigations, and implementing compensating controls for exposed systems.

Technical summary

The vulnerability exists in the magnify operation of ImageMagick, where an unrecognized magnify:method value can trigger an out of bounds read. This can lead to sensitive information exposure or denial of service. The vulnerability has a CVSS score of 4.8 and a severity of MEDIUM. Affected product deployments should be reviewed for exposure, and compensating controls may be necessary while remediation is scheduled and verified.

Defensive priority

Medium priority should be given to patching or mitigating this vulnerability, as it can lead to sensitive information exposure or denial of service.

Recommended defensive actions

  • Patch ImageMagick to version 7.1.2-19 or later
  • Restrict access to the magnify operation
  • Monitor for suspicious activity
  • Implement compensating controls
  • Inventory checks for affected versions
  • Review relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-07-11T14:16:21.953Z and has not been modified since then. The NVD entry is currently Received. There may be additional information available from vendor advisories or other sources that could help defenders understand and mitigate this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-56372 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-56372

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-56372 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-56372

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.