CVE-2026-33535 — Magick.NET-Q16-AnyCPU
MEDIUMCVE-2026-33535 is a medium-severity (CVSS 4) Out-of-bounds Write vulnerability in Magick.NET-Q16-AnyCPU. A fix is available for Magick.NET-Q16-AnyCPU — see the affected versions and patch details below.
ImageMagick has an Out-of-Bounds write of a zero byte in its X11 display interaction
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2026-33535.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2026-33535 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 377,166 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
Magick.NET-Q16-AnyCPU.NETMagick.NET-Q16-HDRI-AnyCPU.NETMagick.NET-Q16-HDRI-OpenMP-arm64.NETMagick.NET-Q16-HDRI-arm64.NETMagick.NET-Q16-HDRI-x64.NETMagick.NET-Q16-HDRI-x86.NETMagick.NET-Q16-OpenMP-arm64.NETMagick.NET-Q16-OpenMP-x64+10 moreReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects NuGet packages — download data is not available via public APIs for these ecosystems.
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.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| .NETNuGet | Magick.NET-Q16-AnyCPU | all versions | 14.11.1dotnet add package Magick.NET-Q16-AnyCPU --version 14.11.1 |
| .NETNuGet | Magick.NET-Q16-HDRI-AnyCPU | all versions | 14.11.1dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.11.1 |
| .NETNuGet | Magick.NET-Q16-HDRI-OpenMP-arm64 | all versions | 14.11.1dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.11.1 |
| .NETNuGet | Magick.NET-Q16-HDRI-arm64 | all versions | 14.11.1dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.11.1 |
| .NETNuGet | Magick.NET-Q16-HDRI-x64 | all versions | 14.11.1dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.11.1 |
| .NETNuGet | Magick.NET-Q16-HDRI-x86 | all versions | 14.11.1dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.11.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for Magick.NET-Q16-AnyCPU, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update Magick.NET-Q16-AnyCPU to 14.11.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-33535 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2026-33535 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2026-33535. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2026-33535 in your dependencies?
O3 Security finds CVE-2026-33535 across NuGet dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.