How severe is CVE-2026-53465?

CVE-2026-53465 has a CVSS score of 6.2/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2026-53465?

CVE-2026-53465 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 9 more. Ecosystems affected: NuGet.

How do I fix CVE-2026-53465?

Update Magick.NET-Q16-AnyCPU to 14.14.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-53465 is resolved across your whole dependency graph.

How do I detect CVE-2026-53465 in my NuGet dependencies?

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.

How do I mitigate CVE-2026-53465 if there is no patch (or I can't update yet)?

Stop feeding it untrusted input: reject or quarantine files and payloads from unverified sources until you can upgrade, restrict accepted formats to the ones you actually need, and run the parsing or decoding step in a least-privileged sandbox or short-lived worker so a crash or corrupted read cannot reach the rest of the process.

Is CVE-2026-53465 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-53465 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 CVE-2026-53465?

CVE-2026-53465 has an EPSS (Exploit Prediction Scoring System) score of 0.2%, placing it in the 5th 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 CVE-2026-53465?

CVE-2026-53465 is classified as CWE-122 (CWE-122), Out-of-bounds Write (CWE-787). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2026-53465 published, and has it been updated?

CVE-2026-53465 was published on June 10, 2026 and was last updated on October 22, 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

.NET NuGet

Not in CISA KEV

MEDIUM severity

CVE-2026-53465 — Magick.NET-Q16-AnyCPU

MEDIUM

CVE-2026-53465 is a medium-severity (CVSS 6.2) CWE-122 vulnerability in Magick.NET-Q16-AnyCPU. A fix is available for Magick.NET-Q16-AnyCPU — see the affected versions and patch details below.

ImageMagick: Heap Buffer Over-Write in SF3 encoder when writing multi-frame image

Also known asGHSA-44cp-c3ww-9rv5

Published

Jun 10, 2026

Updated

Oct 22, 2026

Affected

17 pkgs

Patched

17 / 17

Exploits

None indexed

Exploitation data as of Oct 23, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

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-2026-53465.

EPSS Exploitation Probability

via FIRST.org ↗

0.2%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs5th percentile — riskier than 5% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2026-53465 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 394,803 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

17 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+9 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

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-25, a crafted multi-frame can result in a heap buffer over-write when encoding it with the SF3 encoder. This issue has been patched in version 7.1.2-25.

Affected Packages

17 total 17 fixed

Ecosystem	Package	Vulnerable range	Fix
.NETNuGet	`Magick.NET-Q16-AnyCPU`	all versions	14.14.0`dotnet add package Magick.NET-Q16-AnyCPU --version 14.14.0`
.NETNuGet	`Magick.NET-Q16-HDRI-AnyCPU`	all versions	14.14.0`dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.14.0`
.NETNuGet	`Magick.NET-Q16-HDRI-OpenMP-arm64`	all versions	14.14.0`dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.14.0`
.NETNuGet	`Magick.NET-Q16-HDRI-arm64`	all versions	14.14.0`dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.14.0`
.NETNuGet	`Magick.NET-Q16-HDRI-x64`	all versions	14.14.0`dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.14.0`
.NETNuGet	`Magick.NET-Q16-HDRI-x86`	all versions	14.14.0`dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.14.0`

Affected Products

1 product · 1 configurations

Application

imagemagickimagemagick

< 7.1.2-25

range

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, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update Magick.NET-Q16-AnyCPU to 14.14.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-53465 is resolved across your whole dependency graph.
Workarounds
Stop feeding it untrusted input: reject or quarantine files and payloads from unverified sources until you can upgrade, restrict accepted formats to the ones you actually need, and run the parsing or decoding step in a least-privileged sandbox or short-lived worker so a crash or corrupted read cannot reach the rest of the process.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2026-53465 in your dependencies?

Find it across NuGet, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

6.2/10CVSS v3 base

Vector breakdown

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Raw vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE Classification

CWE-122CWE-122 CWE-787Out-of-bounds Write

Weaponization

No known public exploit tooling found.

OpenSSF Scorecard

Package health score

ImageMagick

8.8/10

Code-Review0/10

Maintained10/10

Dependency-Update-Tool10/10

Vulnerabilities10/10

Branch-Protection8/10

Assessed Oct 22, 2026

Timeline

Disclosed

Jun 10, 2026

Last updated

Oct 22, 2026

Identifiers

CVE-2026-53465

GHSA-44cp-c3ww-9rv5

References

Advisorygithub.com Advisorygithub.com Advisorynvd.nist.gov Webgithub.com Packagegithub.com

Related vulnerabilities

This CVE is medium severity; 3 of 8 other CVEs affecting Magick.NET-Q16-AnyCPU are rated as high or higher (top: moderate).

GHSA-cvhv-g4rq-3hmwCVE-2026-53466CVE-2026-62363GHSA-56m6-8q75-f2rwGHSA-6jwg-7q3p-5fqmGHSA-6vxp-gfwf-hcr9GHSA-76q6-2p6h-xjqrGHSA-7c7m-fpjw-gwcq

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedOct 22, 2026

CVE-2026-53465 — Magick.NET-Q16-AnyCPU

Exploitation Status

No confirmed exploitation observed yet

EPSS Exploitation Probability

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

Description

Affected Packages

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

Frequently Asked Questions

Is CVE-2026-53465 in your dependencies?