PT-2026-29285 · Bishopfox · Sliver

Published 2026-03-31 · Updated 2026-03-31 · CVE-2026-34227

NVD

CVSS v4.0

5.9

Medium

AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Fix

Missing Authentication

Weakness Enumeration

CWE-306

CWE-942

Related Identifiers

CVE-2026-34227

Affected Products

Sliver

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-34227 · Security Note
• https://github.com/BishopFox/sliver/security/advisories/GHSA-6fpf-248c-m7wm · Note