CVE-2025-27093 Details
Description
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.
A vulnerability exists in the Sliver command and control framework, specifically in versions through 1.5.43 and the development version 1.6.0-dev. The issue arises because the framework's custom Wireguard netstack does not restrict traffic between Wireguard clients. This lack of restriction can lead to several potential problems: leaked or recovered Wireguard keypairs from a beacon could be used to attack operators, and port forwardings could be accessed from other implants.
Users can update to Sliver version 1.5.44, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 28, 2025CISA-ADP
Assessed Oct 29, 2025References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/BishopFox/sliver/security/advisories/GHSA-q8j9-34qf-7vq7 | CISA-ADP | AdvisoryRemedyVendor |
| https://github.com/BishopFox/sliver/commit/8e5c5f14506d6d60ebb3362e6b9857ab1e0d76ff | [email protected] | Source CodeVendor |
| https://github.com/BishopFox/sliver/commit/9122878cbbcae543eb8210f616550382af2065fd | [email protected] | Source CodeVendor |
| https://github.com/BishopFox/sliver/security/advisories/GHSA-q8j9-34qf-7vq7 | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| BishopFox Sliver | <= 1.5.43 (semver) 1.6.0-dev (semver) |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Oct 29, 2025 | CVE Modified | CISA-ADP |
| Oct 28, 2025 | New CVE Received | [email protected] |