CVE-2026-30937— ImageMagick has a heap buffer overflow in WriteXWDImage due to CARD32 arithmetic overflow in bytes_per_line calculation
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I. Basic Information for CVE-2026-30937
Vulnerability Information
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Vulnerability Title
ImageMagick has a heap buffer overflow in WriteXWDImage due to CARD32 arithmetic overflow in bytes_per_line calculation
Source: NVD (National Vulnerability Database)
Vulnerability Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, a 32-bit unsigned integer overflow in the XWD (X Windows) encoder can cause an undersized heap buffer allocation. When writing a extremely large image an out of bounds heap write can occur. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
ImageMagick 输入验证错误漏洞
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 7.1.2-16之前版本和6.9.13-41之前版本存在输入验证错误漏洞，该漏洞源于XWD编码器中存在32位无符号整数溢出，可能导致堆缓冲区分配过小和越界堆写入。
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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| ImageMagick | ImageMagick | >= 7.0.0, < 7.1.2-16 | - |
II. Public POCs for CVE-2026-30937
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|---|
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Same Patch Batch · ImageMagick · 2026-03-09 · 16 CVEs total
| CVE-2026-28693 | 8.1 HIGH | ImageMagick has an integer overflow in DIB coder can result in out of bounds read or write |
| CVE-2026-30929 | 7.7 HIGH | ImageMagick has a stack buffer overflow in MagnifyImage |
| CVE-2026-28691 | 7.5 HIGH | ImageMagick has an uninitialized pointer dereference in JBIG decoder |
| CVE-2026-28494 | 7.1 HIGH | ImageMagick affected by stack corruption through long morphology kernel names or arrays |
| CVE-2026-28690 | 6.9 MEDIUM | ImageMagick has a stack write buffer overflow in MNG encoder |
| CVE-2026-30931 | 6.8 MEDIUM | ImageMagick has a heap-based buffer overflow in UHDR encoder |
| CVE-2026-28686 | 6.8 MEDIUM | ImageMagick has a write heap-buffer-overflow in PCL encoder via undersized output buffer |
| CVE-2026-28493 | 6.5 MEDIUM | ImageMagick has a Integer Overflow leading to out of bounds write in SIXEL decoder |
| CVE-2026-28689 | 6.3 MEDIUM | ImageMagick has a Path Policy TOCTOU symlink race bypass |
| CVE-2026-30883 | 5.7 MEDIUM | ImageMagick has a Heap Overflow when writing extremely large image profile in the PNG enco |
| CVE-2026-30936 | 5.5 MEDIUM | ImageMagick has a heap Buffer Overflow in WaveletDenoiseImage |
| CVE-2026-28687 | 5.3 MEDIUM | ImageMagick has a Heap Use-After-Free in ImageMagick MSL decoder |
| CVE-2026-28692 | 4.8 MEDIUM | ImageMagick has a heap buffer over-read via 32-bit integer overflow in MAT decoder |
| CVE-2026-30935 | 4.4 MEDIUM | ImageMagick has a heap Buffer Over-Read in BilateralBlurImage |
| CVE-2026-28688 | 4.0 MEDIUM | ImageMagick has a heap use-after-free in the MSL encoder |
IV. Related Vulnerabilities
Same product: ImageMagick
- CVE-2026-40312
ImageMagick: Off-by-One in MSL decoder could result in crash - CVE-2026-40311
ImageMagick: Heap-use-after-free via XMP profile could resul - CVE-2026-40310
ImageMagick: Heap out-of-bounds write in JP2 encoder - CVE-2026-40183
ImageMagick: Heap buffer overflow when encoding JXL image wi - CVE-2026-40169
ImageMagick: Heap buffer overflow (WRITE) in the YAML and JS
Same vendor: ImageMagick
- CVE-2026-40312
ImageMagick: Off-by-One in MSL decoder could result in crash - CVE-2026-40311
ImageMagick: Heap-use-after-free via XMP profile could resul - CVE-2026-40310
ImageMagick: Heap out-of-bounds write in JP2 encoder - CVE-2026-40183
ImageMagick: Heap buffer overflow when encoding JXL image wi - CVE-2026-40169
ImageMagick: Heap buffer overflow (WRITE) in the YAML and JS
Same weakness: CWE-122
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