CVE-2025-57807Public exploit

Memory corruption via forward-seek under-allocation

Published Sep 5, 2025 · Updated Nov 3, 2025

Heap out-of-bounds write in ImageMagick before 14.8.2 allows local users to corrupt process memory through a forward-seeked BlobStream. SeekBlob() advances the BlobStream offset past its extent, while WriteBlob() grows by only the write length and quantum before copying at that offset. Exploitation requires high local privileges and user interaction; the resulting controlled heap overwrite reliably crashes the process, while code execution remains unproven.

CVSS severity3.8
Low
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap out-of-bounds write in ImageMagick before 14.8.2 allows local users to corrupt process memory through a forward-seeked BlobStream. SeekBlob() advances the BlobStream offset past its extent, while WriteBlob() grows by only the write length and quantum before copying at that offset. Exploitation requires high local privileges and user interaction; the resulting controlled heap overwrite reliably crashes the process, while code execution remains unproven.

The record

CVE
CVE-2025-57807
Published
Sep 5, 2025
Updated
Nov 3, 2025
Vendor
ImageMagick Studio LLC
Product
ImageMagick
Classifications
CWE-131, CWE-122, CWE-787, T1203
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Sep 5, 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=< 14.8.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

ImageMagick Studio LLC · ImageMagickversion=< 14.8.2

Published CVSS scores

3.8GitHubCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L

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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-131Incorrect Calculation of Buffer Size
CWE-122Heap-based Buffer Overflow
CWE-787Out-of-bounds Write
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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