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Fencer Vulns
high 8.4

CVE-2025-59489 json

Unity Runtime before 2025-10-02 on Android, Windows, macOS, and Linux allows argument injection that can result in loading of library code…

published 2025-10-03 13 mo ago modified 2026-10-08 31 d ago also EUVD-2025-32504

cvss
8.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

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.

Patch / fix

  • Unity3D Unity Editor 2019.2.23f1, 2019.3.17f1, 2019.4.41f1, 2020.1.18f1, 2020.2.8f1, 2020.3.49f1, 2021.1.29f1, 2021.2.20f1, 2021.3.45f2, 2021.3.56f2, 2022.1.25f1, 2022.2.23f1, 2022.3.62f2, 2022.3.67f2, 2023.1.22f1, 2023.2.22f1, 6000.0.58f2, 6000.1.17f1, 6000.2.6f2, 6000.3.0b4

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
13 mo ago

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • flatt.tech https://flatt.tech/research/posts/arbitrary-code-execution-in-unity-runtime/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADP 3.1 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Unity3D Unity Editor

Classification

Weakness
  • CWE-88 Improper Neutralization of Argument Delimiters in a Command
  • CWE-426 Untrusted Search Path

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.