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
- 2026-07-11
- Advisory published
- 2026-07-11
- Advisory updated
- 2026-07-11
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.
Official resources
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-11T14:16:21.953Z and has not been modified since then.