VDB

GCVE-110-OSM-2026-3181

GCVE-110-OSM-2026-3181
Advisory PublishedCVSS 9.6/10
Vulnetix · Advisory published April 26, 2026
Installs a full C2 command-and-control framework server as an npm package. Implements 34 task types including BOF/COFF loader, Windows syscall stubs for EDR evasion, reverse shell, and post-exploitation modules. Designed to be deployed on attacker-controlled infrastructure and manage compromised endpoints. **Package function**: implements a complete attacker-side command-and-control server. **Task types** (34 total): include BOF/COFF (Beacon Object File) loader for in-memory execution without disk writes, Windows syscall stubs that bypass EDR API hook chains by calling syscalls directly, reverse shell handler, and post-exploitation collection modules. **Deployment**: intended to run on attacker infrastructure as the server component managing a fleet of compromised endpoints. **No victim-side trigger**: this package IS the server infrastructure.

Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1
9.6/10
Critical · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected Products

VendorProductVersionsPlatforms
unknownbytecode-c21.0.0 (affected)

References

vendor

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