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Vulnerability record · CVE-2026-92748 · published 16 September 2026

CVE-2026-92748: Path traversal vulnerability

BC Security Empire before 6.7.1 fails to validate the multipart filename parameter in upload endpoints, allowing authenticated operators to write files to arbitrary paths on the C2 server. Attackers can use path traversal sequences in the filename to bypass directory containment and write malicious files to sensitive locations for code execution.

8.7 CVSS 4.0 High EPSS 0.82% · top 44.5% CWE-22 · Path traversal Awaiting Analysis
8.7CVSS 4.0 base score
0.82%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
7References
24 Sep 2026Last modified by NVD

Description

BC Security Empire before 6.7.1 fails to validate the multipart filename parameter in upload endpoints, allowing authenticated operators to write files to arbitrary paths on the C2 server. Attackers can use path traversal sequences in the filename to bypass directory containment and write malicious files to sensitive locations for code execution.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/BC-SECURITY/Empire
https://github.com/BC-SECURITY/Empire/blob/v6.6.0/empire/server/core/download_service.py#L148-L193
https://github.com/BC-SECURITY/Empire/commit/c33a626316cb20bc8ed707e03a22d324d5d4762a
https://github.com/BC-SECURITY/Empire/issues/824
https://github.com/BC-SECURITY/Empire/releases/tag/v6.7.1
https://www.vulncheck.com/advisories/bc-security-empire-before-6.7.1-path-traversal-file-upload-rce
https://github.com/BC-SECURITY/Empire/issues/824

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-92748), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.