CVE-2025-52456 Integer overflow in SAIL Image Decoding Library

High 8.8 Published 25 Aug 2025 Updated 3 Nov 2025

An integer overflow in the SAIL library's WebP decoder allows remote code execution via a crafted animation file.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2025-52456?

CVE-2025-52456 is a high-severity vulnerability in SAIL Image Decoding Library, published on 25 Aug 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A memory corruption vulnerability exists in the WebP Image Decoding functionality of the SAIL Image Decoding Library v0.9.8. When loading a specially crafted .webp animation an integer overflow can be made to occur when calculating the stride for decoding. Afterwards, this will cause a heap-based buffer to overflow when decoding the image which can lead to remote code execution. An attacker will need to convince the library to read a file to trigger this vulnerability.

Weakness: CWE-680

Which versions are affected by CVE-2025-52456?

It affects 1 product.

Products include Sail Sail.

How do I fix CVE-2025-52456?

Upgrade to a fixed version.

Is CVE-2025-52456 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-52456 exists.

Sources

Also known as DEBIAN-CVE-2025-52456, GHSA-qpwf-mp3c-xfx7, UBUNTU-CVE-2025-52456.