CVSS 4.0
5.9 mediumCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:L/SC:N/SI:N/SA:NCVE-2026-34227
Medium (5.9) in bishopfox sliver. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in github.com/bishopfox/sliver 1.7.4.
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.
Severity
CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 35% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-306, CWE-942
- Published
- Modified
- Record from
- the NVD, synced
Affected
- bishopfox:sliver
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-6fpf-248c-m7wm | Go | github.com/bishopfox/sliver | <1.7.4 | 1.7.4 |
| GO-2026-5175 | Go | github.com/bishopfox/sliver | <1.7.4 | 1.7.4 |