CVE-2025-55298Public exploitNetwork attack vector

Code execution via externally controlled format string

Published Aug 26, 2025 · Updated Nov 3, 2025

Format-string injection in ImageMagick before 6.9.13-28 and 7.1.2-2 allows remote authenticated users to execute arbitrary code. InterpretImageFilename passes an attacker-controlled filename to FormatLocaleString, allowing format directives to read and overwrite process memory. Exploitation requires control of a processed filename and favorable memory layout; successful code runs with the ImageMagick process privileges.

CVSS severity7.5
High
EPSS probability4.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Format-string injection in ImageMagick before 6.9.13-28 and 7.1.2-2 allows remote authenticated users to execute arbitrary code. InterpretImageFilename passes an attacker-controlled filename to FormatLocaleString, allowing format directives to read and overwrite process memory. Exploitation requires control of a processed filename and favorable memory layout; successful code runs with the ImageMagick process privileges.

The record

CVE
CVE-2025-55298
Published
Aug 26, 2025
Updated
Nov 3, 2025
Vendor
ImageMagick Studio LLC
Product
ImageMagick
Classifications
CWE-123, CWE-134, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 6.9.13-28
  2. Affected versionversion=< 7.1.2-2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ImageMagick Studio LLC · ImageMagickversion=< 6.9.13-28; version=< 7.1.2-2

Published CVSS scores

7.5GitHubCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-123Write-what-where Condition
CWE-134Use of Externally-Controlled Format String
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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