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CVE-2025-27093

6.3 · MEDIUM

Sliver is a command and control framework that uses a custom Wireguard netstack.

Published Oct 28, 2025CWE-284EPSS 0.29%

Overview

CVE-2025-27093 is a medium-severity vulnerability. It was published on October 28, 2025 and has a CVSS 3.1 base score of 6.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/BishopFox/sliver/commit/8e5c5f14506d6d60ebb3362e6b9857ab1e0d76ffGitHubgithub.com/BishopFox/sliver/commit/9122878cbbcae543eb8210f616550382af2065fdGitHubgithub.com/BishopFox/sliver/security/advisories/GHSA-q8j9-34qf-7vq7GitHubgithub.com/BishopFox/sliver/security/advisories/GHSA-q8j9-34qf-7vq7

How CyberStrike helps

Frequently asked questions

What is CVE-2025-27093?

CVE-2025-27093 is a medium-severity vulnerability. It was published on October 28, 2025 and has a CVSS 3.1 base score of 6.3 (MEDIUM).

How severe is CVE-2025-27093?

This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-27093?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-27093?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-27093 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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