CVE-2025-54870

VTun-ng is a Virtual Tunnel over TCP/IP network. In versions 3.0.17 and below, failure to initialize encryption modules might cause reversion to plaintext due to insufficient error handling. The bug was first introduced in VTun-ng version 3.0.12. This is fixed in version 3.0.18. To workaround this issue, avoid blowfish-256.

Score

CVSS 4.0 8.7 High

Status

Deferred - security-advisories@github.com

Published

2025-08-05

Last modified

2025-08-05

Weaknesses

CWE-636

Affected products

• Vtun-ng (Leakingmemory)

References

• https://github.com/leakingmemory/vtun-ng/commit/8c63982b6c487c52db1d56ab94c266f0bc857140
• https://github.com/leakingmemory/vtun-ng/security/advisories/GHSA-m3jc-27c6-2wrf