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CVE-2025-57803

Imagemagick buffer overflow

7.5 HIGHPublic exploitEPSS 0.84%
  1. Published26 Aug 2025

Description

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-28 and 7.1.2-2 for ImageMagick's 32-bit build, a 32-bit integer overflow in the BMP encoder’s scanline-stride computation collapses bytes_per_line (stride) to a tiny value while the per-row writer still emits 3 × width bytes for 24-bpp images. The row base pointer advances using the (overflowed) stride, so the first row immediately writes past its slot and into adjacent heap memory with attacker-controlled bytes. This is a classic, powerful primitive for heap corruption in common auto-convert pipelines. This issue has been patched in versions 6.9.13-28 and 7.1.2-2.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Imagemagick≥ 7.0.0-0 < 7.1.2-2 · < 6.9.13-28

Remediation

Fixed in
Imagemagick≥ 7.1.2-2

References

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Frequently asked

Is CVE-2025-57803 being actively exploited?

CVE-2025-57803 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.84%.

How severe is CVE-2025-57803?

CVE-2025-57803 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.84% probability of exploitation.

Which products are affected by CVE-2025-57803?

Affected products include Imagemagick.

How do I fix CVE-2025-57803?

Upgrade affected software to a fixed version, for example Imagemagick 7.1.2-2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.