Skip to content
CVE PROGRAM SOURCE RECORD5.9 Medium

CVE-2026-34227

Sliver One-Click Remote Access: Insecure CORS & Unauthenticated MCP Interface

Description

Sliver is a command and control framework that uses a custom Wireguard netstack. Prior to version 1.7.4, a single click on a malicious link gives an unauthenticated attacker immediate, silent control over every active C2 session or beacon, capable of exfiltrating all collected target data (e.g. SSH keys, ntds.dit) or destroying the entire compromised infrastructure, entirely through the operator's own browser. This issue has been patched in version 1.7.4.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

BishopFox sliver

  • < 1.7.4affected

References