Sliver C2 framework version 1.7.7 and earlier contains an unhandled panic vulnerability in the operator gRPC handler that allows an attacker controlling a compromised implant to crash the entire teamserver by returning a malformed or empty Download response. Attackers can send zero-length or 1-3 byte data payloads through a hostile implant session to trigger an out-of-bounds slice access in the vendored Binject library's BinaryMagic function, which propagates unrecovered through the operator gRPC interceptor chain and terminates the server process, affecting all connected operators.

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History

Tue, 29 Sep 2026 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Bishopfox
Bishopfox sliver
Vendors & Products Bishopfox
Bishopfox sliver

Tue, 29 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 29 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
Description Sliver C2 framework version 1.7.7 and earlier contains an unhandled panic vulnerability in the operator gRPC handler that allows an attacker controlling a compromised implant to crash the entire teamserver by returning a malformed or empty Download response. Attackers can send zero-length or 1-3 byte data payloads through a hostile implant session to trigger an out-of-bounds slice access in the vendored Binject library's BinaryMagic function, which propagates unrecovered through the operator gRPC interceptor chain and terminates the server process, affecting all connected operators.
Title Sliver 1.7.7 Denial of Service via PE Parser Slice Bounds in Operator RPC
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 5.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-29T17:56:57.805Z

Reserved: 2026-09-29T11:37:09.721Z

Link: CVE-2026-102507

cve-icon Vulnrichment

Updated: 2026-09-29T17:56:53.654Z

cve-icon NVD

Status : Received

Published: 2026-09-29T12:17:09.943

Modified: 2026-09-29T18:17:07.853

Link: CVE-2026-102507

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-29T18:45:10Z

Weaknesses