CVE-2026-23952 — Magick.NET-Q8-x64
MEDIUMCVE-2026-23952 is a medium-severity (CVSS 6.5) NULL Pointer Dereference vulnerability in Magick.NET-Q8-x64. A fix is available for Magick.NET-Q8-x64 — see the affected versions and patch details below.
ImageMagick has a NULL pointer dereference in MSL parser via <comment> tag before image load
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
Exploitation and automatability from CISA’s SSVC triage for CVE-2026-23952.
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-2026-23952 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 377,238 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-Q8-x64.NETMagick.NET-Q8-arm64.NETMagick.NET-Q8-x86.NETMagick.NET-Q8-OpenMP-x64.NETMagick.NET-Q8-OpenMP-arm64.NETMagick.NET-Q16-x64.NETMagick.NET-Q16-arm64.NETMagick.NET-Q16-x86+11 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. Versions 14.10.1 and below have a NULL pointer dereference vulnerability in the MSL (Magick Scripting Language) parser when processing <comment> tags before images are loaded. This can lead to DoS attack due to assertion failure (debug builds) or NULL pointer dereference (release builds). This issue is fixed in version 14.10.2.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| .NETNuGet | Magick.NET-Q8-x64 | all versions | 14.10.2dotnet add package Magick.NET-Q8-x64 --version 14.10.2 |
| .NETNuGet | Magick.NET-Q8-arm64 | all versions | 14.10.2dotnet add package Magick.NET-Q8-arm64 --version 14.10.2 |
| .NETNuGet | Magick.NET-Q8-x86 | all versions | 14.10.2dotnet add package Magick.NET-Q8-x86 --version 14.10.2 |
| .NETNuGet | Magick.NET-Q8-OpenMP-x64 | all versions | 14.10.2dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.10.2 |
| .NETNuGet | Magick.NET-Q8-OpenMP-arm64 | all versions | 14.10.2dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.10.2 |
| .NETNuGet | Magick.NET-Q16-x64 | all versions | 14.10.2dotnet add package Magick.NET-Q16-x64 --version 14.10.2 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for Magick.NET-Q8-x64, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update Magick.NET-Q8-x64 to 14.10.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-23952 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-2026-23952 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2026-23952. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
Frequently Asked Questions
Is CVE-2026-23952 in your dependencies?
O3 Security finds CVE-2026-23952 across NuGet dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.