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CVE-2026-46523— ImageMagick: Use-After-Free in MSL decoder.

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 7.1.2.23之前版本和6.9.13-48之前版本存在资源管理错误漏洞，该漏洞源于特制MSL图像可能触发堆释放后重用。

CVSS 6.2 · Medium EPSS 0.42% · P34

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
ImageMagick ImageMagick < 7.1.2-23 affected
< 6.9.13-48 affected
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I. Basic Information for CVE-2026-46523

Vulnerability Information
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Vulnerability Title
ImageMagick: Use-After-Free in MSL decoder.
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 7.1.2.23 and 6.9.13-48, a crafted MSL image can trigger a heap-use-after-free. Versions 7.1.2.23 and 6.9.13-48 fix the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
ImageMagick 资源管理错误漏洞
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 7.1.2.23之前版本和6.9.13-48之前版本存在资源管理错误漏洞，该漏洞源于特制MSL图像可能触发堆释放后重用。
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 < 7.1.2-23 -

II. Public POCs for CVE-2026-46523

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III. Intelligence Information for CVE-2026-46523

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Vendor Advisories for CVE-2026-46523 (1)

Same Patch Batch · ImageMagick · 2026-06-10 · 28 CVEs total

CVE-2026-53461 7.5 HIGH ImageMagick: Out-of-bounds write in ICON decoder due to incorrect loop
CVE-2026-46520 7.5 HIGH ImageMagick: Heap Buffer Over-Write in IPL decoder when reading multiple images of differe
CVE-2026-53460 7.5 HIGH ImageMagick: Policy Bypass can trigger out-of-Memory condition
CVE-2026-46522 7.5 HIGH ImageMagick: Infinite Loop in the MIFF decoder can lead to CPU exhaustion
CVE-2026-49218 7.5 HIGH ImageMagick: Policy Bypass in DCM decoder could result in image with invalid dimensions
CVE-2026-53465 6.2 MEDIUM ImageMagick: Heap Buffer Over-Write in SF3 encoder when writing multi-frame image
CVE-2026-46557 6.2 MEDIUM ImageMagick: Stack overflow in fx operation
CVE-2026-53462 5.9 MEDIUM ImageMagick: Use-After-Free when allocation in CheckPrimitiveExtent fails
CVE-2026-48994 5.9 MEDIUM ImageMagick: Heap Buffer Over-Write in MAT decoder on 32-bit systems
CVE-2026-47166 5.7 MEDIUM ImageMagick: Heap Buffer Over-Read in distributed pixel cache server
CVE-2026-45359 5.7 MEDIUM ImageMagick: Out-of-Bounds Read in connected components when the user supplies an invalid
CVE-2026-46521 5.5 MEDIUM ImageMagick: Heap Buffer Over-Write in MIFF encoder when using LZMA compression
CVE-2026-49219 5.5 MEDIUM ImageMagick: Policy Bypass can read disallowed files
CVE-2026-48724 5.5 MEDIUM ImageMagick: Heap Buffer Underwrite in Floyd-Steinberg depth dithering
CVE-2026-48734 5.5 MEDIUM ImageMagick: Stack Overflow in MVG decoder
CVE-2026-45664 5.3 MEDIUM ImageMagick: Policy Bypass in MNG coder could
CVE-2026-45358 5.3 MEDIUM ImageMagick: Out-of-Bounds Read of a single byte in meta encoder
CVE-2026-45031 5.3 MEDIUM ImageMagick: Policy Bypass in PSD decoder
CVE-2026-45624 5.1 MEDIUM ImageMagick: Heap Buffer Over-Read of a 4 bytes in distort operation.
CVE-2026-42326 5.1 MEDIUM ImageMagick: Heap Buffer Over-Read in IPTC encoder

Showing top 20 of 28 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: ImageMagick
Same vendor: ImageMagick
Same weakness: CWE-416

V. Comments for CVE-2026-46523

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