CVE-2015-6401

Exp

Cisco EPC3928 devices with EDVA 5.5.10, 5.5.11, and 5.7.1 allow remote attackers to bypass an intended authentication requirement and execute unspecified administrative functions via a crafted HTTP request, aka Bug ID CSCux24941.

Published: 2015-12-13 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2015-6401 is rated High Exploit Risk (77.5/100): CVSS High severity, with high exploitation likelihood (EPSS 7.63%, 94th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2015-6401

EDB-ID Source Kind Published Link
39904 exploit_db edb 2016-06-07 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2015-6401

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-29 8.01% 7.63% -0.38%
2 2026-06-15 7.91% 8.01% +0.10%
3 2025-03-30 7.91%

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-6401

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 6.4 [email protected]

Weakness enumeration for CVE-2015-6401

Affected software / configurations for CVE-2015-6401

Vendor Product Version Raw CPE
cisco epc3928_docsis_3.0_8x4_wireless_residential_gateway_with_embedded_digital_voice_adapter 5.5.10 cpe:2.3:o:cisco:epc3928_docsis_3.0_8x4_wireless_residential_gateway_with_embedded_digital_voice_adapter:5.5.10:*:*:*:*:*:*:*
cisco epc3928_docsis_3.0_8x4_wireless_residential_gateway_with_embedded_digital_voice_adapter 5.5.11 cpe:2.3:o:cisco:epc3928_docsis_3.0_8x4_wireless_residential_gateway_with_embedded_digital_voice_adapter:5.5.11:*:*:*:*:*:*:*
cisco epc3928_docsis_3.0_8x4_wireless_residential_gateway_with_embedded_digital_voice_adapter 5.7.1 cpe:2.3:o:cisco:epc3928_docsis_3.0_8x4_wireless_residential_gateway_with_embedded_digital_voice_adapter:5.7.1:*:*:*:*:*:*:*

References for CVE-2015-6401

cvelogic Threat Intelligence