CVE-2026-102507: Out-of-bounds Read in BishopFox sliver
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.
AI Analysis
Technical Summary
Sliver C2 framework versions 1.7.7 and earlier contain an unhandled panic vulnerability in the operator gRPC handler. An attacker controlling a compromised implant can send zero-length or 1-3 byte data payloads that trigger an out-of-bounds slice access in the vendored Binject library's BinaryMagic function. This error propagates unrecovered through the operator gRPC interceptor chain, causing the teamserver process to terminate and affecting all connected operators.
Potential Impact
Successful exploitation results in a denial of service by crashing the Sliver teamserver, disrupting all connected operators. There is no indication of privilege escalation, data leakage, or remote code execution from the provided data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the operator gRPC interface and monitor implant communications for malformed Download responses to reduce risk.
CVE-2026-102507: Out-of-bounds Read in BishopFox sliver
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.
CVSS v4.0
Score 6.8medium
Affected software
BishopFox
sliver
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Sliver C2 framework versions 1.7.7 and earlier contain an unhandled panic vulnerability in the operator gRPC handler. An attacker controlling a compromised implant can send zero-length or 1-3 byte data payloads that trigger an out-of-bounds slice access in the vendored Binject library's BinaryMagic function. This error propagates unrecovered through the operator gRPC interceptor chain, causing the teamserver process to terminate and affecting all connected operators.
Potential Impact
Successful exploitation results in a denial of service by crashing the Sliver teamserver, disrupting all connected operators. There is no indication of privilege escalation, data leakage, or remote code execution from the provided data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the operator gRPC interface and monitor implant communications for malformed Download responses to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-29T11:37:09.721Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6abba914f7a7c54106570c0b
Added to database: 09/29/2026, 12:03:32 UTC
Last enriched: 09/29/2026, 12:18:03 UTC
Last updated: 09/29/2026, 18:20:12 UTC
Views: 12
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