How severe is CVE-2015-6401?

CVE-2015-6401 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2015-6401 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6401?

CVE-2015-6401 primarily affects Cisco Epc3928 Docsis 3.0 8x4 Wireless Residential Gateway With Embedded Digital Voice Adapter. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-6401?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2015-6401 published?

CVE-2015-6401 was published on 2015-12-14 and last updated on 2026-06-17.

CVE-2015-6401

CVE-2015-6401 is a high-severity vulnerability in Cisco Epc3928 Docsis 3.0 8x4 Wireless Residential Gateway With Embedded Digital Voice Adapter with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Cisco Epc3928 Docsis 3.0 8x4 Wireless Residential Gateway With Embedded Digital Voice Adapter
Published: 2015-12-14
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2015-6401?: 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.
How severe is CVE-2015-6401?: CVE-2015-6401 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2015-6401 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6401?: CVE-2015-6401 primarily affects Cisco Epc3928 Docsis 3.0 8x4 Wireless Residential Gateway With Embedded Digital Voice Adapter. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6401?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-6401 published?: CVE-2015-6401 was published on 2015-12-14 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o: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:5.5.11:*:*:*:*:*:*:*
cpe:2.3:o:cisco:epc3928_docsis_3.0_8x4_wireless_residential_gateway_with_embedded_digital_voice_adapter:5.7.1:*:*:*:*:*:*:*

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