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CVE-2026-55597— ImageMagick: Heap Buffer Over-Write in JP2 encoder when due to incorrect handling of arguments

CVSS 5.5 · Medium EPSS 0.10% · P1

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProductVersion RangeStatus
ImageMagickImageMagick< 7.1.2-26affected
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I. Basic Information for CVE-2026-55597

Vulnerability Information
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Vulnerability Title
ImageMagick: Heap Buffer Over-Write in JP2 encoder when due to incorrect handling of arguments
Source: NVD (National Vulnerability Database)
Vulnerability Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-26, an incorrect handling of arguments can cause a heap buffer over-write in the JP2 encoder. This issue has been fixed in version7.1.2-26.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
数值计算不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
ImageMagick 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ImageMagick是ImageMagick团队开源的一套开源的图像处理软件。可读取、转换或写入多种格式的图片。 ImageMagick 7.1.2-26之前版本存在安全漏洞，该漏洞源于对参数处理不当，可能导致JP2编码器中发生堆缓冲区越界写入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
ImageMagickImageMagick < 7.1.2-26 -

II. Public POCs for CVE-2026-55597

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III. Intelligence Information for CVE-2026-55597

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Vendor Advisories for CVE-2026-55597 (1)

Same Patch Batch · ImageMagick · 2026-07-01 · 8 CVEs total

CVE-2026-534666.5 MEDIUMImageMagick: Heap Buffer Over-Read in XCF decoder due to integer conversion overflow
CVE-2026-555775.9 MEDIUMImageMagick: Heap Buffer Overflow in ImageMagick MVG decoder
CVE-2026-555105.5 MEDIUMImageMagick: Use-After-Free in crafted 8BIM when identifying an image
CVE-2026-556285.5 MEDIUMImageMagick: Policy Bypass in concatenate operation due to missing checks
CVE-2026-534675.3 MEDIUMImageMagick: Information Disclosure in MNG decoder because allocated memory is left unchan
CVE-2026-555945.3 MEDIUMImageMagick: Stack Overflow in MVG decoder due to missing depth check.
CVE-2026-555954.7 MEDIUMImageMagick: Infinite Loop in connected-components when providing invalid arguments

IV. Related Vulnerabilities

Same product: ImageMagick
Same vendor: ImageMagick
Same weakness: CWE-682

V. Comments for CVE-2026-55597

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