Command and Control Framework Vulnerability in Sliver by Bishop Fox
CVE-2026-34227

5.9MEDIUM

Key Information:

Vendor

Bishopfox
Status
Sliver
Vendor
CVE Published:
31 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-34227?

The Sliver command and control framework, developed by Bishop Fox, contains a vulnerability that allows unauthorized attackers to gain complete control over active command and control sessions. By merely clicking a malicious link, an unauthenticated user can access sensitive data such as SSH keys and potentially compromise the entire infrastructure. This vulnerability has been mitigated in version 1.7.4, highlighting the importance of keeping the system updated to mitigate such risks. Further details can be found in the official advisory.

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Affected Version(s)

sliver < 1.7.4

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-34227
Created by skoveit

References

https://github.com/BishopFox/sliver/security/advisories/G...
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CVSS V4

Score:
5.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability Reserved

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