Description
Unity Runtime before 2025-10-02 on Android, Windows, macOS, and Linux allows argument injection that can result in loading of library code from an unintended location. If an application was built with a version of Unity Editor that had the vulnerable Unity Runtime code, then an adversary may be able to execute code on, and exfiltrate confidential information from, the machine on which that application is running. NOTE: product status is provided for Unity Editor because that is the information available from the Supplier. However, updating Unity Editor typically does not address the effects of the vulnerability; instead, it is necessary to rebuild and redeploy all affected applications.
Affected products
unity: editor; apple: macos; google: android; linux: linux kernel; microsoft: windows
References3
- unity.com/security/sept-2025-01 Vendor Advisory
- flatt.tech/research/posts/arbitrary-code-execution-in-unity-run… ExploitThird Party Advisory
- unity.com/security#security-updates-and-patches Product
Metrics
- CVSS 3.1
-
7.4
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 51 · as of 9 November 2026
- CWE
- CWE-88CWE-426
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.