CVE-2025-54870

VTun-ng's failure to initialize encryption modules may cause reversion to plaintext

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.

Category

8.7
CVSS
Severity: High
CVSS 4.0 •
EPSS 0.03%
Affected: leakingmemory vtun-ng
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2025-54870?
CVE-2025-54870 has been scored as a high severity vulnerability.
How to fix CVE-2025-54870?
To fix CVE-2025-54870, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-54870 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-54870 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-54870?
CVE-2025-54870 affects leakingmemory vtun-ng.
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