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CVE-2026-25898— Imagemagick Has Global Buffer Overflow (OOB Read) via Negative Pixel Index in UIL and XPM Writer

Quick assessment

Affected
ImageMagick ImageMagick
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ImageMagick是ImageMagick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 7.1.2-15之前版本和6.9.13-40之前版本存在缓冲区错误漏洞，该漏洞源于UIL和XPM图像编码器在使用GetPixelIndex返回值作为数组下标前未验证其有效性，可能导致全局缓冲区溢出读取，造成信息泄露或进程崩溃。

CVSS 6.5 · Medium EPSS 0.47% · P38

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services
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I. Basic Information for CVE-2026-25898

Vulnerability Information
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Vulnerability Title
Imagemagick Has Global Buffer Overflow (OOB Read) via Negative Pixel Index in UIL and XPM Writer
Source: CVE Program / CVE List V5
Vulnerability Description
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, the UIL and XPM image encoder do not validate the pixel index value returned by `GetPixelIndex()` before using it as an array subscript. In HDRI builds, `Quantum` is a floating-point type, so pixel index values can be negative. An attacker can craft an image with negative pixel index values to trigger a global buffer overflow read during conversion, leading to information disclosure or a process crash. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
ImageMagick 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ImageMagick是ImageMagick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 7.1.2-15之前版本和6.9.13-40之前版本存在缓冲区错误漏洞，该漏洞源于UIL和XPM图像编码器在使用GetPixelIndex返回值作为数组下标前未验证其有效性，可能导致全局缓冲区溢出读取，造成信息泄露或进程崩溃。
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

Vendor Product Affected Versions CPE Subscribe
ImageMagick ImageMagick >= 7.0.0, < 7.1.2-15 -

II. Public POCs for CVE-2026-25898

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III. Intelligence Information for CVE-2026-25898

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Vendor Advisories for CVE-2026-25898 (1)

Same Patch Batch · ImageMagick · 2026-02-24 · 32 CVEs total

CVE-2026-25965 8.6 HIGH ImageMagick's policy bypass through path traversal allows reading restricted content despi
CVE-2026-25794 8.2 HIGH ImageMagick has heap-buffer-overflow via signed integer overflow in `WriteUHDRImage` when
CVE-2026-24481 7.5 HIGH ImageMagick has Possible Heap Information Disclosure in PSD ZIP Decompression
CVE-2026-25989 7.5 HIGH ImageMagick has integer overflow or wraparound and incorrect conversion between numeric ty
CVE-2026-25985 7.5 HIGH Memory allocation with excessive without limits in the internal SVG decoder
CVE-2026-24485 7.5 HIGH ImageMagick: Infinite loop vulnerability when parsing a PCD file
CVE-2026-25968 7.4 HIGH ImageMagick has MSL attribute stack buffer overflow that leads to out of bounds write.
CVE-2026-25967 7.4 HIGH ImageMagick has stack buffer overflow in FTXT reader via oversized integer field
CVE-2026-26284 6.5 MEDIUM ImageMagick has heap overflow in pcd decoder that leads to out of bounds read.
CVE-2026-25897 6.5 MEDIUM ImageMagick has heap overflow in sun decoder on 32-bit systems that can result in out of b
CVE-2026-25982 6.5 MEDIUM ImageMagick Has Heap Out-of-Bounds Read in DCM Decoder (ReadDCMImage)
CVE-2026-26066 6.2 MEDIUM ImageMagick has infinite loop when writing IPTCTEXT leads to denial of service via crafted
CVE-2026-26283 6.2 MEDIUM ImageMagick has possible infinite loop in JPEG encoder when using `jpeg:extent`
CVE-2026-25971 6.2 MEDIUM ImageMagick's MSL: Stack overflow in ProcessMSLScript
CVE-2026-25966 5.9 MEDIUM ImageMagick's Security Policy Bypass through config/policy-secure.xml via "fd handler" lea
CVE-2026-25797 5.7 MEDIUM ImageMagick vulnerable to Code injection via PostScript header in ps coders
CVE-2026-25987 5.3 MEDIUM ImageMagick has heap buffer over-read in MAP image decoder
CVE-2026-26983 5.3 MEDIUM ImageMagick: Invalid MSL <map> can result in a use after free
CVE-2026-24484 5.3 MEDIUM ImageMagick: Converting multi-layer nested MVG to SVG can cause DoS
CVE-2026-25986 5.3 MEDIUM ImageMagick has a heap buffer overflow in YUV 4:2:2 decoder

Showing top 20 of 32 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: ImageMagick
Same vendor: ImageMagick
Same weakness: CWE-125

V. Comments for CVE-2026-25898

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