CVE-2026-34227: falha de média gravidade em BishopFox sliver
Sliver One-Click Remote Access: Insecure CORS & Unauthenticated MCP Interface
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13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 5.9epss 0.4%
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.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N
Produtos afetados
BishopFox · sliverCVEs relacionadas — BishopFox sliver
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CVE-2024-41111HIGHBishopFox Sliver Authenticated Remote Code ExecutionEPSS 0.7%CVE-2025-27090MEDIUMServer-Side Request Forgery (SSRF) in sliver teamserverEPSS 0.6%CVE-2026-29781LOWSliver: Authenticated Nil-Pointer Dereference in HandlersEPSS 0.6%CVE-2026-25760MEDIUMWebsite Path Traversal / Arbitrary File Read (Authenticated) in SliverEPSS 0.5%CVE-2026-77622HIGHSliver: Unauthenticated Memory Exhaustion Denial of Service in Sliver HTTP(S) Listener PNG DecoderEPSS 0.5%CVE-2026-25791HIGHSliver has a DNS C2 OTP Bypass Allows Unauthenticated Session Flooding and Denial of ServiceEPSS 0.4%