CVE-2025-54870
High
Description
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.
SeverityHigh
CVSS8.7
Exploit probability—
ProductLeakingmemory Vtun-ng
PublishedAug 5, 2025
First seenAug 5, 2025
Weakness typeCWE-636CWE-636
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| leakingmemory vtun-ng | >= 3.0.12, < 3.0.18 | — |
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