The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST); Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST); Cisco DPC3939B (firmware version dpc3939b-v303r204217-150321a-CMCST); Cisco DPC3941T (firmware version DPC3941_2.5s3_PROD_sey); and Arris TG1682G (eMTA&DOCSIS version 10.0.132.SIP.PC20.CT, software version TG1682_2.2p7s2_PROD_sey) devices allows remote attackers to execute arbitrary code via a specific (but unstated) exposed service. NOTE: the scope of this CVE does NOT include the concept of "Unnecessary Services" in general; the scope is only a single service that is unnecessarily exposed, leading to remote code execution. The details of that service might be disclosed at a later date.
This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.8, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 8 products from cisco, from cisco, from cisco and 5 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2017-07-31T03:29:00.973
2025-04-20T01:37:25.860
Deferred
CVSSv3.1: 9.8 (CRITICAL)
AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | dpc3939_firmware | dpc3939-p20-18-v303r20421733-160420a-cmcst | Yes |
| Hardware | cisco | dpc3939 | - | No |
| Operating System | cisco | dpc3939_firmware | dpc3939-p20-18-v303r20421746-170221a-cmcst | Yes |
| Hardware | cisco | dpc3939 | - | No |
| Operating System | cisco | dpc3939b_firmware | dpc3939b-v303r204217-150321a-cmcst | Yes |
| Hardware | cisco | dpc3939b | - | No |
| Operating System | cisco | dpc3941t_firmware | dpc3941_2.5s3_prod_sey | Yes |
| Hardware | cisco | dpc3941t | - | No |
| Operating System | commscope | arris_tg1682g_firmware | 10.0.132.sip.pc20.ct | Yes |
| Operating System | commscope | arris_tg1682g_firmware | tg1682_2.2p7s2_prod_sey | Yes |
| Hardware | commscope | arris_tg1682g | - | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.