# CVE-2026-33535: ImageMagick has an Out-of-Bounds write of a zero byte in its X11 display interaction > An out-of-bounds write in ImageMagick's X11 display path can cause a crash, requiring a patch to prevent denial of service. - **Severity:** Medium 4.0 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Local or same network only - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 26 Mar 2026 - **Updated:** 27 Mar 2026 - **Also known as:** DEBIAN-CVE-2026-33535, ECHO-11a3-7a00-131f, GHSA-mw3m-pqr2-qv7c, JLSEC-2026-991, MINI-xqw9-485w-p87c, SUSE-SU-2026:1504-1, UBUNTU-CVE-2026-33535, openSUSE-SU-2026:10585-1, openSUSE-SU-2026:20591-1 ## What is CVE-2026-33535? CVE-2026-33535 is a medium-severity memory corruption vulnerability in Imagemagick Imagemagick, published on 26 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim. ### Official description ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-18 and 6.9.13-43, an out-of-bounds write of a zero byte exists in the X11 `display` interaction path that could lead to a crash. Versions 7.1.2-18 and 6.9.13-43 patch the issue. Weakness: CWE-787 (Out-of-bounds Write) ## Which versions are affected by CVE-2026-33535? 36 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 | 14.11.1 | | `Magick.NET-Q16-AnyCPU` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-HDRI-AnyCPU` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-HDRI-AnyCPU` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-HDRI-x86` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-HDRI-x86` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-OpenMP-x86` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-OpenMP-x86` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-arm64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-arm64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-x64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-x64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-x86` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q16-x86` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q8-AnyCPU` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q8-AnyCPU` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q8-arm64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q8-arm64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q8-x64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q8-x64` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q8-x86` | NuGet | All versions | 14.11.1 | | `Magick.NET-Q8-x86` | NuGet | All versions | 14.11.1 | | `GraphicsMagick` | SUSE:Linux Enterprise Module for Package Hub 15 SP7 | All versions | 1.3.42-150600.3.21.1 | | `GraphicsMagick` | openSUSE:Leap 16.0 | All versions | 1.3.45-160000.5.1 | | `GraphicsMagick` | openSUSE:Tumbleweed | All versions | 1.3.46-6.1 | Products: Imagemagick Imagemagick. ## How do I fix CVE-2026-33535? Upgrade Magick.NET-Q16-AnyCPU to 14.11.1 or later. ## Is CVE-2026-33535 being exploited? There is no known exploitation of CVE-2026-33535 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-2026-33535 and fix it if it is affected. What it is: CVE-2026-33535 is a medium-severity memory corruption vulnerability in Imagemagick Imagemagick, published on 26 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim. Exploitation: There is no known exploitation of CVE-2026-33535 in the wild and no public exploit code. Affected packages and fixed versions: - Magick.NET-Q16-AnyCPU (NuGet): affected all versions; fixed in 14.11.1 - Magick.NET-Q16-AnyCPU (NuGet): affected all versions; fixed in 14.11.1 - Magick.NET-Q16-HDRI-AnyCPU (NuGet): affected all versions; fixed in 14.11.1 - Magick.NET-Q16-HDRI-AnyCPU (NuGet): affected all versions; fixed in 14.11.1 - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions; fixed in 14.11.1 - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions; fixed in 14.11.1 - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions; fixed in 14.11.1 - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions; fixed in 14.11.1 - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions; fixed in 14.11.1 - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions; fixed in 14.11.1 - Magick.NET-Q16-HDRI-x86 (NuGet): affected all versions; fixed in 14.11.1 - Magick.NET-Q16-HDRI-x86 (NuGet): affected all versions; fixed in 14.11.1 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-2026-33535/ (Markdown: https://insights.sbomify.com/CVE-2026-33535/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2026-33535 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-33535 - OSV: https://osv.dev/vulnerability/CVE-2026-33535 --- From sbomify Insights: https://insights.sbomify.com/CVE-2026-33535/ Summaries are generated and may contain mistakes; the official description above is the record.