# CVE-2025-62594: ImageMagick CLAHE : Unsigned underflow and division-by-zero lead to OOB pointer arithmetic and process crash (DoS) > Attackers can cause a denial of service in ImageMagick via crafted images triggering integer underflow and division-by-zero errors in CLAHE processing. - **Severity:** Medium 4.7 (`CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Local or same network only - **Victim action needed:** A user has to click or open something - **Fix available:** Yes - **Published:** 27 Oct 2025 - **Updated:** 27 Oct 2025 - **Also known as:** DEBIAN-CVE-2025-62594, GHSA-wpp4-vqfq-v4hp, JLSEC-2026-928, MINI-wmcr-q98x-mqcv, OESA-2025-2587, OESA-2025-2589, OESA-2025-2590, OESA-2025-2631, SUSE-SU-2025:3956-1, SUSE-SU-2025:3978-1, SUSE-SU-2025:3985-1, UBUNTU-CVE-2025-62594, openSUSE-SU-2025:15685-1 ## What is CVE-2025-62594? CVE-2025-62594 is a medium-severity vulnerability in Imagemagick Imagemagick, published on 27 Oct 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link. ### Official description ImageMagick is a software suite to create, edit, compose, or convert bitmap images. ImageMagick versions prior to 7.1.2-8 are vulnerable to denial-of-service due to unsigned integer underflow and division-by-zero in the CLAHEImage function. When tile width or height is zero, unsigned underflow occurs in pointer arithmetic, leading to out-of-bounds memory access, and division-by-zero causes immediate crashes. This issue has been patched in version 7.1.2-8. Weakness: CWE-369 (Divide By Zero), CWE-191 (Integer Underflow (Wrap or Wraparound)), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) ## Which versions are affected by CVE-2025-62594? 24 open source packages ship an affected version, including Magick.NET-Q16-HDRI-OpenMP-arm64, Magick.NET-Q16-HDRI-OpenMP-x64 and Magick.NET-Q16-HDRI-arm64. It affects 1 product. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q16-HDRI-OpenMP-x64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q16-HDRI-OpenMP-x64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q16-arm64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q16-arm64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q16-x64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q16-x64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q8-arm64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q8-arm64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q8-x64` | NuGet | All versions to 14.9.0 | None | | `Magick.NET-Q8-x64` | NuGet | All versions to 14.9.0 | None | | `ImageMagick` | SUSE:Linux Enterprise Module for Desktop Applications 15 SP6 | All versions | 7.1.0.9-150400.6.51.1 | | `ImageMagick` | SUSE:Linux Enterprise Module for Desktop Applications 15 SP6 | All versions | 7.1.1.21-150600.3.29.1 | | `ImageMagick` | SUSE:Linux Enterprise Module for Desktop Applications 15 SP7 | All versions | 7.1.0.9-150400.6.51.1 | | `ImageMagick` | SUSE:Linux Enterprise Module for Desktop Applications 15 SP7 | All versions | 7.1.1.43-150700.3.22.1 | | `ImageMagick` | SUSE:Linux Enterprise Module for Development Tools 15 SP6 | All versions | 7.1.1.21-150600.3.29.1 | | `ImageMagick` | SUSE:Linux Enterprise Module for Development Tools 15 SP7 | All versions | 7.1.1.43-150700.3.22.1 | | `ImageMagick` | openSUSE:Leap 15.6 | All versions | 7.1.1.21-150600.3.29.1 | | `ImageMagick` | openSUSE:Tumbleweed | All versions | 7.1.2.8-1.1 | Products: Imagemagick Imagemagick. ## How do I fix CVE-2025-62594? Upgrade to a fixed version. ## Is CVE-2025-62594 being exploited? It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-62594 exists. ## Other vulnerabilities in Imagemagick Imagemagick - [CVE-2019-19952](https://insights.sbomify.com/CVE-2019-19952/): Use after free in n/a (critical 9.8) - [CVE-2018-16328](https://insights.sbomify.com/CVE-2018-16328/): Null dereference in n/a (critical 9.8) - [CVE-2018-16329](https://insights.sbomify.com/CVE-2018-16329/): Null dereference in n/a (critical 9.8) - [CVE-2017-18210](https://insights.sbomify.com/CVE-2017-18210/): Null dereference in n/a (critical 9.8) - [CVE-2017-14138](https://insights.sbomify.com/CVE-2017-14138/): Denial of service in n/a (critical 9.8) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2025-62594 and fix it if it is affected. What it is: CVE-2025-62594 is a medium-severity vulnerability in Imagemagick Imagemagick, published on 27 Oct 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link. Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-62594 exists. Affected packages and fixed versions: - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions up to 14.9.0; no fix listed - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions up to 14.9.0; no fix listed - Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): affected all versions up to 14.9.0; no fix listed - Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): affected all versions up to 14.9.0; no fix listed - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions up to 14.9.0; no fix listed - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions up to 14.9.0; no fix listed - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions up to 14.9.0; no fix listed - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions up to 14.9.0; no fix listed - Magick.NET-Q16-OpenMP-arm64 (NuGet): affected all versions up to 14.9.0; no fix listed - Magick.NET-Q16-OpenMP-arm64 (NuGet): affected all versions up to 14.9.0; no fix listed - Magick.NET-Q16-OpenMP-x64 (NuGet): affected all versions up to 14.9.0; no fix listed - Magick.NET-Q16-OpenMP-x64 (NuGet): affected all versions up to 14.9.0; no fix listed Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2025-62594/ (Markdown: https://insights.sbomify.com/CVE-2025-62594/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2025-62594 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-62594 - OSV: https://osv.dev/vulnerability/CVE-2025-62594 --- From sbomify Insights: https://insights.sbomify.com/CVE-2025-62594/ Summaries are generated and may contain mistakes; the official description above is the record.