CVE-2026-34227 — Sliver One-Click Remote Access: Insecure CORS & Unauthenticated MCP Interface
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 imm…
Published: 2026-03-31 · CVSS: 5.9 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7