CVE-2026-90948

Code execution via undersized embedded PNG buffer

Published Sep 14, 2026 · Updated Sep 14, 2026

Heap-based buffer overflow in GIMP's ICO loader allows remote attackers to execute code or crash GIMP via a crafted ICO file. When an ICO contains an embedded PNG, overflow-prone integer arithmetic produces an undersized decoded-pixel buffer before pixel data is written past its end. Exploitation requires a user to open the malicious image; successful memory corruption runs code in the GIMP process, while unsuccessful attempts crash it.

CVSS severityUnavailable
Unscored
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in GIMP's ICO loader allows remote attackers to execute code or crash GIMP via a crafted ICO file. When an ICO contains an embedded PNG, overflow-prone integer arithmetic produces an undersized decoded-pixel buffer before pixel data is written past its end. Exploitation requires a user to open the malicious image; successful memory corruption runs code in the GIMP process, while unsuccessful attempts crash it.

The record

CVE
CVE-2026-90948
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1204.002, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

No CVSS assessment is available in this record.

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.

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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

T1204.002Malicious 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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