# CVE-2026-48724: ImageMagick: Heap Buffer Underwrite in Floyd-Steinberg depth dithering > A heap buffer underwrite in ImageMagick's Floyd-Steinberg dithering allows attackers to cause memory corruption and potential code execution via crafted images. - **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/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:** 10 Jun 2026 - **Updated:** 11 Jun 2026 - **Also known as:** DEBIAN-CVE-2026-48724, ECHO-f52e-9e52-aaa7, GHSA-2hhq-c99x-492r, JLSEC-2026-1022, MINI-wf79-c88f-r872, UBUNTU-CVE-2026-48724 ## What is CVE-2026-48724? CVE-2026-48724 is a medium-severity memory corruption vulnerability in Imagemagick Imagemagick, published on 10 Jun 2026. 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 free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-24, when using an image with mask the Floyd-Steinberg dithering method it will cause a negative heap buffer over-write. This issue has been patched in version 7.1.2-24. Weakness: CWE-787 (Out-of-bounds Write) ## Which versions are affected by CVE-2026-48724? 34 open source packages ship an affected version, including Magick.NET-Q16-AnyCPU, Magick.NET-Q16-HDRI-AnyCPU and Magick.NET-Q16-HDRI-OpenMP-arm64. It affects 1 product. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `Magick.NET-Q16-AnyCPU` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-AnyCPU` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-HDRI-AnyCPU` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-HDRI-AnyCPU` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-HDRI-x86` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-HDRI-x86` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-arm64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-arm64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-x64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-x64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-x86` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q16-x86` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q8-AnyCPU` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q8-AnyCPU` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q8-arm64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q8-arm64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q8-x64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q8-x64` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q8-x86` | NuGet | All versions | 14.14.0 | | `Magick.NET-Q8-x86` | NuGet | All versions | 14.14.0 | Products: Imagemagick Imagemagick. ## How do I fix CVE-2026-48724? Upgrade Magick.NET-Q16-AnyCPU to 14.14.0 or later. ## Is CVE-2026-48724 being exploited? There is no known exploitation of CVE-2026-48724 in the wild and no public exploit code. ## 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-2026-48724 and fix it if it is affected. What it is: CVE-2026-48724 is a medium-severity memory corruption vulnerability in Imagemagick Imagemagick, published on 10 Jun 2026. 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: There is no known exploitation of CVE-2026-48724 in the wild and no public exploit code. Affected packages and fixed versions: - Magick.NET-Q16-AnyCPU (NuGet): affected all versions; fixed in 14.14.0 - Magick.NET-Q16-AnyCPU (NuGet): affected all versions; fixed in 14.14.0 - Magick.NET-Q16-HDRI-AnyCPU (NuGet): affected all versions; fixed in 14.14.0 - Magick.NET-Q16-HDRI-AnyCPU (NuGet): affected all versions; fixed in 14.14.0 - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions; fixed in 14.14.0 - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions; fixed in 14.14.0 - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions; fixed in 14.14.0 - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions; fixed in 14.14.0 - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions; fixed in 14.14.0 - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions; fixed in 14.14.0 - Magick.NET-Q16-HDRI-x86 (NuGet): affected all versions; fixed in 14.14.0 - Magick.NET-Q16-HDRI-x86 (NuGet): affected all versions; fixed in 14.14.0 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-2026-48724/ (Markdown: https://insights.sbomify.com/CVE-2026-48724/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2026-48724 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-48724 - OSV: https://osv.dev/vulnerability/CVE-2026-48724 --- From sbomify Insights: https://insights.sbomify.com/CVE-2026-48724/ Summaries are generated and may contain mistakes; the official description above is the record.