Application crash via overflowing binomial kernel
Published Jun 30, 2026 · Updated Jun 30, 2026
Integer overflow in ImageMagick before 6.9.13-47 and 7.1.2-22 allows local users to crash image-processing applications. In affected releases, AcquireKernelBuiltIn computes factorial-based binomial coefficients from an unbounded user-controlled radius; size_t multiplication wraps and a later coefficient calculation divides by zero. Exploitation requires a local invocation or an application that accepts attacker-controlled kernel arguments, and it terminates the affected process without reported data disclosure or modification.
Summary
What happened
Integer overflow in ImageMagick before 6.9.13-47 and 7.1.2-22 allows local users to crash image-processing applications. In affected releases, AcquireKernelBuiltIn computes factorial-based binomial coefficients from an unbounded user-controlled radius; size_t multiplication wraps and a later coefficient calculation divides by zero. Exploitation requires a local invocation or an application that accepts attacker-controlled kernel arguments, and it terminates the affected process without reported data disclosure or modification.
The record
- CVE
- CVE-2026-56363
- Published
- Jun 30, 2026
- Updated
- Jun 30, 2026
- Vendor
- ImageMagick Studio LLC
- Product
- ImageMagick
- Classifications
- CWE-369, CWE-190, T1499
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 30, 2026CVE publishedPublication date reported by the CVE source.
- Jun 30, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <6.9.13-47
- Affected versionversion=0 <7.1.2-22
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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