NULL pointer dereference in Bishopfox Sliver
CVE-2026-29781
Sliver is a command and control framework that uses a custom Wireguard netstack. In versions from 1.7.3 and prior, a vulnerability exists in the Sliver C2 server's Protobuf unmarshalling logic due to a systemic lack of nil-pointer validati…
EPSS: 0.000 (10.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Bishopfox Sliver — versions <= 1.7.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/BishopFox/sliver/security/advisories/GHSA-hx52-cv84-jr5v (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-29781?
- CVE-2026-29781 is a medium-severity vulnerability in Bishopfox Sliver, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2026-03-07.
- How severe is CVE-2026-29781?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2026-29781 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.