ImageMagick has Integer Overflow in BMP Decoder (ReadBMP)

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

4.4 · CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS

• CVE-2025-62171: 0.81% estimated exploitation activity in the next 30 days; percentile 56.93 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary CVE-2025-57803 claims to be patched in ImageMagick 7.1.2-2, but the fix is incomplete and ineffective. The latest version 7.1.2-5 remains vulnerable to the same integer overflow attack. The patch added BMPOverflowCheck() but placed it after the overflow occurs, making it useless. A malicious 58-byte BMP file can trigger AddressSanitizer crashes and DoS. Affected Versions: - ImageMagick < 7.1.2-2 (originally reported) - ImageMagick 7.1.2-2 through 7.1.2-5 (incomplete patch) Platform and Configuration Requirements: - 32-bit systems ONLY (i386, i686, armv7l, etc.) - Requires sizet = 4 bytes. (64-bit systems are NOT vulnerable (sizet = 8 bytes)) - Requires modified resource limits: The default width, height, and area limits must have been manually increased (Systems using default ImageMagick resource limits are NOT vulnerable). --- Details(Root Cause Analysis) Vulnerable Code Location File: coders/bmp.c Lines: 1120-1122 (in version 7.1.2-5) The Incomplete Patch Why the Patch…

Published by the source

28 Oct 2025, 14:43 UTC

Last modified by the source

3 Nov 2025, 18:32 UTC

Source last checked

26 Oct 2026, 17:04 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-9pp9-cfwx-54rm

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# Patch Next advisory brief: CVE-2025-62171

Advisory: ImageMagick has Integer Overflow in BMP Decoder (ReadBMP)
IDs: CVE-2025-62171, GHSA-9pp9-cfwx-54rm
Record: https://patchnext.com/advisories/cve-2025-62171 (revision 1, source checked 26 Oct 2026, 17:04 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 4.4)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: magick.net-q8-x86 14.9.0; magick.net-q16-hdri-anycpu 14.9.0; magick.net-q16-anycpu 14.9.0; magick.net-q16-hdri-x86 14.9.0; magick.net-q16-x86 14.9.0; magick.net-q8-anycpu 14.9.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- NuGet magick.net-q8-x86: affected < 14.9.0; fixed in 14.9.0
- NuGet magick.net-q16-hdri-anycpu: affected < 14.9.0; fixed in 14.9.0
- NuGet magick.net-q16-anycpu: affected < 14.9.0; fixed in 14.9.0
- NuGet magick.net-q16-hdri-x86: affected < 14.9.0; fixed in 14.9.0
- NuGet magick.net-q16-x86: affected < 14.9.0; fixed in 14.9.0
- NuGet magick.net-q8-anycpu: affected < 14.9.0; fixed in 14.9.0

## Suggested inspection (read-only)
- NuGet magick.net-q8-x86: check the installed version with your package manager.
- NuGet magick.net-q16-hdri-anycpu: check the installed version with your package manager.
- NuGet magick.net-q16-anycpu: check the installed version with your package manager.
- NuGet magick.net-q16-hdri-x86: check the installed version with your package manager.
- NuGet magick.net-q16-x86: check the installed version with your package manager.
- NuGet magick.net-q8-anycpu: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on magick.net-q8-x86, magick.net-q16-hdri-anycpu, magick.net-q16-anycpu, magick.net-q16-hdri-x86, magick.net-q16-x86, magick.net-q8-anycpu.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-9pp9-cfwx-54rm (GitHub-reviewed advisory GHSA-9pp9-cfwx-54rm lists affected ranges: NuGet magick.net-q16-anycpu >=0 =0 =0 =0 =0 =0 <14.9.0)

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