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HIGH

CVE-2026-90948

Gimp: gimp: heap-based buffer overflow in ico loader via integer overflow in embedded png dimensions

CVSS v3

7.8

HIGH

EPSS Score

0.2 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

A flaw was found in GIMP's ICO file loader. When processing an ICO file containing an embedded PNG image, an integer overflow can occur during the calculation of the required buffer size. This leads to an undersized buffer being allocated, causing a heap-based buffer overflow when the decoded pixel data is written. A remote attacker could exploit this by crafting a malicious ICO file, which, when opened, could lead to arbitrary code execution or a crash.

Technical details

Published
2026-09-14
Last Modified
2026-09-15

Frequently asked questions

What is CVE-2026-90948?

A flaw was found in GIMP's ICO file loader. When processing an ICO file containing an embedded PNG image, an integer overflow can occur during the calculation of the required buffer size. This leads to an undersized buffer being allocated, causing a heap-based buffer overflow when the decoded pixel data is written. A remote attacker could exploit this by crafting a malicious ICO file, which, when opened, could lead to arbitrary code execution or a crash.

Is CVE-2026-90948 actively exploited?

Active exploitation of CVE-2026-90948 has not been confirmed. Its EPSS score was 0.2% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-90948?

CVE-2026-90948 has a CVSS v3 base score of 7.8 (HIGH severity).

Is CVE-2026-90948 affecting your environment?

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