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Imagemagick CVE-2026-28494

HIGH
Stack-based Buffer Overflow (CWE-121)
2026-03-10 security-advisories@github.com GHSA-932h-jw47-73jm
Buffer Overflow Linux Red Hat Imagemagick Suse
7.1
CVSS 3.1 · GitHub Advisory
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Supply malicious morphology kernel string
  2. Exploit
    ImageMagick parses kernel without bounds checking
  3. Execution
    Stack buffer overflow corrupts memory
  4. Impact
    Modify program control flow or data

Vulnerability Assessment

Weakness
CWE
CWE-121
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Stack buffer bounds checking
MITRE ATT&CK

1 technique across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Exploitation Conditions

User interaction required: victim must process attacker-supplied image or morphology kernel string with ImageMagick versions prior to 7.1.2-16 or 6.9.13-41. Exploitation via local file processing or image manipulation operations.
Impact

Severity: High (7.1/10.0) Very low exploitation probability (EPSS: 0.00013, 2.0th percentile) Local attack vector — requires local access or user interaction to exploit
Exploit ScenarioDerived

An attacker with local access to the system can exploit this vulnerability.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

High severity vulnerability in ImageMagick. A stack buffer overflow exists in ImageMagick's morphology kernel parsing functions. User-controlled kernel strings exceeding a buffer are copied into fixed-size stack buffers via memcpy without bounds checking, resulting in stack corruption.

RemediationAI

Security advisories:

  • https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-932h-jw47-73jm

Affected Packages

nuget magick.net-q16-anycpu fix: 14.10.4
nuget magick.net-q16-arm64 fix: 14.10.4
nuget magick.net-q16-hdri-anycpu fix: 14.10.4
nuget magick.net-q16-hdri-arm64 fix: 14.10.4
nuget magick.net-q16-hdri-openmp-arm64 fix: 14.10.4
nuget magick.net-q16-hdri-openmp-x64 fix: 14.10.4
nuget magick.net-q16-hdri-x64 fix: 14.10.4
nuget magick.net-q16-hdri-x86 fix: 14.10.4
nuget magick.net-q16-openmp-arm64 fix: 14.10.4
nuget magick.net-q16-openmp-x64 fix: 14.10.4
nuget magick.net-q16-openmp-x86 fix: 14.10.4
nuget magick.net-q16-x64 fix: 14.10.4
nuget magick.net-q16-x86 fix: 14.10.4
nuget magick.net-q8-anycpu fix: 14.10.4
nuget magick.net-q8-arm64 fix: 14.10.4
nuget magick.net-q8-openmp-arm64 fix: 14.10.4
nuget magick.net-q8-openmp-x64 fix: 14.10.4
nuget magick.net-q8-x64 fix: 14.10.4
nuget magick.net-q8-x86 fix: 14.10.4

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 19 packages in nuget

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Technical ContextAI · show details

Vulnerability Type: Stack-based Buffer Overflow (CWE-121) CVSS 3.1: 7.1/10.0 — Attack Vector: Local | Complexity: Low | Privileges Required: None | User Interaction: Required Attack Techniques: Buffer Overflow Source: https://github.com/ImageMagick/ImageMagick Buffer overflow conditions can lead to memory corruption, potentially allowing code execution or causing crashes.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

GitHub Advisory PRIMARY 7.1 HIGH
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
SUSE HIGH
Red Hat 7.1 MEDIUM

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High

Lifecycle Timeline

2
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
CVE Published
Mar 10, 2026 - 07:43 nvd
HIGH 7.1

DescriptionGitHub Advisory

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, a stack buffer overflow exists in ImageMagick's morphology kernel parsing functions. User-controlled kernel strings exceeding a buffer are copied into fixed-size stack buffers via memcpy without bounds checking, resulting in stack corruption. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41.

Executive ViewAI

Why It Matters

CVE-2026-28494 is a high-severity stack buffer overflow vulnerability in ImageMagick that could allow attackers to execute arbitrary code or crash systems processing specially crafted image files. Organizations using ImageMagick for image processing-including web applications, content management systems, and automated image handling pipelines-face immediate risk of compromise until mitigation measures are implemented.

Business Impact: High
Compensating Controls

Implement strict input validation on kernel string parameters with maximum length enforcement; deploy Web Application Firewall (WAF) rules to detect and block oversized morphology kernel inputs; disable ImageMagick's morphology kernel parsing feature if unused; isolate ImageMagick services to restricted network segments with minimal trust; run ImageMagick processes with minimal privileges and in sandboxed environments; consider temporary migration to alternative image processing libraries until patch availability; implement robust error handling and crash detection with automatic service restart.

Threat Intelligence Overview

EPSS Score
0.0%
Top 98% exploitable
Data Quality
5 sources
Confidence: Medium
NVD CVE.org EPSS Vendor GitHub VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
High

Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Affected Products (CPE)GitHub Advisory

cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*

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Same weakness CWE-121 – Stack-based Buffer Overflow

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Vendor StatusVendor

SUSE

Severity: High
Product Status
SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 Fixed
SUSE Linux Enterprise Module for Desktop Applications 15 SP7 Fixed
SUSE Linux Enterprise Module for Development Tools 15 SP7 Fixed
SUSE Linux Enterprise Server 12 SP5-LTSS Fixed
SUSE Linux Enterprise Server 15 SP6-LTSS Fixed

References

Advisories & patches
ADVISORY https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-932h-jw47-73jm ADVISORY https://vuldb.com/?id.349856 ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:1201/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:1202/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:1203/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20917/

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