Track vulnerabilities like this one. Sign up free to get alerted when software you use is affected.
7.8

Sliver 1.7.7 Denial of Service via PE Parser Slice Bounds in Operator RPC

CVE-2026-102507 · published 1 month ago
Summary

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 byt...

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
bishopfox sliver <= 1.7.7
Original advisory text
Sliver 1.7.7 Denial of Service via PE Parser Slice Bounds in Operator RPC
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.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
7.8 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-125Out-of-bounds Read
Timeline
Published29 Sep 2026
Updated3 Nov 2026
First seen29 Sep 2026
Sources
CVE-2026-102507 · NVD
CVE-2026-102507 · MITRE
CVE-2026-102507 · OSV
Track software like this
Free during beta