CVE-2025-2690: Yiiframework Yii

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

A vulnerability, which was classified as critical, was found in yiisoft Yii2 up to 2.0.39. This affects the function Generate of the file phpunit\src\Framework\MockObject\MockClass.php. The manipulation leads to deserialization. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Affected products

• Yiiframework Yii: from 2.0.0, up to and including 2.0.39

Published 2025-03-24. Last modified 2026-06-17.