# CVE-2026-28493: ImageMagick has a Integer Overflow leading to out of bounds write in SIXEL decoder > An integer overflow in the SIXEL decoder allows attackers to cause out-of-bounds writes via crafted images, potentially leading to code execution or crashes. - **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 9 Mar 2026 - **Updated:** 10 Mar 2026 - **Also known as:** DEBIAN-CVE-2026-28493, ECHO-252e-604b-f475, GHSA-r39q-jr8h-gcq2, JLSEC-2026-972, MINI-grmp-h3gf-7cx6, UBUNTU-CVE-2026-28493 ## What is CVE-2026-28493? CVE-2026-28493 is a medium-severity vulnerability in Imagemagick Imagemagick, published on 9 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16, an integer overflow vulnerability exists in the SIXEL decoer. The vulnerability allows an attacker to perform an out of bounds via a specially crafted image. This vulnerability is fixed in 7.1.2-16. Weakness: CWE-190 (Integer Overflow or Wraparound) ## Which versions are affected by CVE-2026-28493? 38 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 | 14.10.4 | | `Magick.NET-Q16-AnyCPU` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-AnyCPU` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-AnyCPU` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-OpenMP-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-OpenMP-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-x86` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-x86` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-OpenMP-x86` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-OpenMP-x86` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-x86` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-x86` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-AnyCPU` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-AnyCPU` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-x86` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-x86` | NuGet | All versions | 14.10.4 | Products: Imagemagick Imagemagick. ## How do I fix CVE-2026-28493? Upgrade Magick.NET-Q16-AnyCPU to 14.10.4 or later. ## Is CVE-2026-28493 being exploited? There is no known exploitation of CVE-2026-28493 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-2026-28493 and fix it if it is affected. What it is: CVE-2026-28493 is a medium-severity vulnerability in Imagemagick Imagemagick, published on 9 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim. Exploitation: There is no known exploitation of CVE-2026-28493 in the wild and no public exploit code. Affected packages and fixed versions: - Magick.NET-Q16-AnyCPU (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-AnyCPU (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-AnyCPU (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-AnyCPU (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions; fixed in 14.10.4 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-2026-28493/ (Markdown: https://insights.sbomify.com/CVE-2026-28493/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2026-28493 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-28493 - OSV: https://osv.dev/vulnerability/CVE-2026-28493 --- From sbomify Insights: https://insights.sbomify.com/CVE-2026-28493/ Summaries are generated and may contain mistakes; the official description above is the record.