GHSA-q8j9-34qf-7vq7 · Severity: medium · Ecosystem: go — Silver has unrestricted traffic between Wireguard clients
Sliver is a command and control framework that uses a custom Wireguard netstack. In versions 1.5.43 and earlier, and in development version 1.6.0-dev, the netstack does not limit traffic between Wireguard clients. This allows clients to communicate with each other unrestrictedly, potentially enabling leaked or recovered keypairs to be used to attack operators or allowing port forwardings to be accessible from other implants.
Conclusion & alert: CVE-2025-27093 is rated Low Risk (28.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.03%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-26 | 0.06% | 0.03% | -0.03% |
| 2 | 2026-02-27 | 0.03% | 0.06% | +0.03% |
| 3 | 2025-10-29 | — | 0.03% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.3 | 3.1 | MEDIUM |
|
2.8 | 3.4 | [email protected] |
GHSA-q8j9-34qf-7vq7 · Severity: medium · Ecosystem: go — Silver has unrestricted traffic between Wireguard clients
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| No affected products in dataset. | |||