How severe is GHSA-fpvf-frm6-625q?

GHSA-fpvf-frm6-625q has a CVSS score of 5.3/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by GHSA-fpvf-frm6-625q?

GHSA-fpvf-frm6-625q affects the following packages: Magick.NET-Q16-AnyCPU (NuGet), Magick.NET-Q16-HDRI-AnyCPU (NuGet), Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet), Magick.NET-Q16-HDRI-arm64 (NuGet), Magick.NET-Q16-HDRI-x64 (NuGet), Magick.NET-Q16-HDRI-x86 (NuGet), Magick.NET-Q16-OpenMP-arm64 (NuGet), Magick.NET-Q16-OpenMP-x64 (NuGet), and 11 more. Ecosystems affected: NuGet.

How do I fix GHSA-fpvf-frm6-625q?

Update Magick.NET-Q16-AnyCPU to 14.10.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-fpvf-frm6-625q is resolved across your whole dependency graph.

How do I detect GHSA-fpvf-frm6-625q in my NuGet dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for Magick.NET-Q16-AnyCPU. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

How do I mitigate GHSA-fpvf-frm6-625q if there is no patch (or I can't update yet)?

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 does O3 Security protect against GHSA-fpvf-frm6-625q?

O3 pinpoints whether GHSA-fpvf-frm6-625q is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Is GHSA-fpvf-frm6-625q actively exploited in the wild?

No public exploit code has been indexed for GHSA-fpvf-frm6-625q yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for GHSA-fpvf-frm6-625q?

GHSA-fpvf-frm6-625q has an EPSS (Exploit Prediction Scoring System) score of 0.2%, placing it in the 15th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is GHSA-fpvf-frm6-625q?

GHSA-fpvf-frm6-625q is classified as Use After Free (CWE-416). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was GHSA-fpvf-frm6-625q published, and has it been updated?

GHSA-fpvf-frm6-625q was published on March 12, 2026 and was last updated on March 14, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

.NET NuGet

GHSA-fpvf-frm6-625q

MEDIUM

ImageMagick has Heap Use-After-Free in ImageMagick MSL decoder

Also known asCVE-2026-28687

Published

Mar 12, 2026

Updated

Mar 14, 2026

Affected

19 pkgs

Patched

19 / 19

Exploits

None indexed

EPSS Exploitation Probability

via FIRST.org ↗

0.2%probability of exploitation in next 30 days

Lower Risk15th percentile+0.18%

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.

Blast Radius

19 pkgs affected

.NETMagick.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+11 more

Real-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

A heap use-after-free vulnerability in ImageMagick's MSL decoder allows an attacker to trigger access to freed memory by crafting an MSL file.

=================================================================
==1500633==ERROR: AddressSanitizer: heap-use-after-free on address 0x527000011550 at pc 0x5612583fa212 bp 0x7ffedb86d160 sp 0x7ffedb86d150
READ of size 8 at 0x527000011550 thread T0

Affected Packages

19 total 19 fixed

Ecosystem	Package	Vulnerable range	Fix
.NETNuGet	`Magick.NET-Q16-AnyCPU`	all versions	14.10.4
.NETNuGet	`Magick.NET-Q16-HDRI-AnyCPU`	all versions	14.10.4
.NETNuGet	`Magick.NET-Q16-HDRI-OpenMP-arm64`	all versions	14.10.4
.NETNuGet	`Magick.NET-Q16-HDRI-arm64`	all versions	14.10.4
.NETNuGet	`Magick.NET-Q16-HDRI-x64`	all versions	14.10.4
.NETNuGet	`Magick.NET-Q16-HDRI-x86`	all versions	14.10.4

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for Magick.NET-Q16-AnyCPU. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update Magick.NET-Q16-AnyCPU to 14.10.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-fpvf-frm6-625q 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 pinpoints whether GHSA-fpvf-frm6-625q is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-fpvf-frm6-625q. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

A heap use-after-free vulnerability in ImageMagick's MSL decoder allows an attacker to trigger access to freed memory by crafting an MSL file. ``` ================================================================= ==1500633==ERROR: AddressSanitizer: heap-use-after-free on address 0x527000011550 at pc 0x5612583fa212 bp 0x7ffedb86d160 sp 0x7ffedb86d150 READ of size 8 at 0x527000011550 thread T0 ```

O3 Security · Impact-Aware SCA

Is GHSA-fpvf-frm6-625q in your dependencies?

O3 detects GHSA-fpvf-frm6-625q across NuGet dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my dependencies How O3 SCA works