CVE-2025-5473

Code execution via overflowing ICO PNG dimensions

Published Jun 6, 2025 · Updated Nov 3, 2025

Integer overflow in the ICO parser in GIMP 3.0.2 allows remote attackers to execute code via a crafted icon opened by a user. The ico_read_png function multiplies embedded PNG width and height by four without checking for arithmetic wraparound before comparing the result with the icon size limit. Exploitation requires a user to open the crafted ICO file or visit a page that causes it to be opened, and successful exploitation runs code in the GIMP process context.

CVSS severity7.8
High
EPSS probability23.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in the ICO parser in GIMP 3.0.2 allows remote attackers to execute code via a crafted icon opened by a user. The ico_read_png function multiplies embedded PNG width and height by four without checking for arithmetic wraparound before comparing the result with the icon size limit. Exploitation requires a user to open the crafted ICO file or visit a page that causes it to be opened, and successful exploitation runs code in the GIMP process context.

The record

CVE
CVE-2025-5473
Published
Jun 6, 2025
Updated
Nov 3, 2025
Vendor
GIMP
Product
GIMP
Classifications
CWE-190, T1204.002, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 6, 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=3.0.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

GIMP · GIMPversion=3.0.2

Published CVSS scores

7.8Zero Day InitiativeCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8INCIBE-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8UbuntuCVSS:3.0/AV:L/AC:L/PR:N/UI:R/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
T1204.002User Execution Malicious File
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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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