The Comcast firmware on Cisco DPC3939 (firmware version…
Priority LOW 32CWE-200Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-200.
Summary
The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST); Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST); and Arris TG1682G (eMTA&DOCSIS version 10.0.132.SIP.PC20.CT, software version TG1682_2.2p7s2_PROD_sey) devices makes it easy for remote attackers to determine the hidden SSID and passphrase for a Home Security Wi-Fi network.
Why it matters now
EPSS 0.01703 77th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421746-170221a-cmcst:*:*:*:*:*:*:* | dpc3939-p20-18-v303r20421746-170221a-cmcst | Vulnerable | Cisco |
| cpe:2.3:h:cisco:dpc3939:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421733-160420a-cmcst:*:*:*:*:*:*:* | dpc3939-p20-18-v303r20421733-160420a-cmcst | Vulnerable | Cisco |
| cpe:2.3:o:commscope:arris_tg1682g_firmware:10.0.132.sip.pc20.ct:*:*:*:*:*:*:* | 10.0.132.sip.pc20.ct | Vulnerable | CommScope, Inc. |
| cpe:2.3:o:commscope:arris_tg1682g_firmware:tg1682_2.2p7s2_prod_sey:*:*:*:*:*:*:* | tg1682_2.2p7s2_prod_sey | Vulnerable | CommScope, Inc. |
| cpe:2.3:h:commscope:arris_tg1682g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | CommScope, Inc. |
- cpe:2.3:o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421746-170221a-cmcst:*:*:*:*:*:*:* Versions dpc3939-p20-18-v303r20421746-170221a-cmcst Vulnerable ·Cisco
- cpe:2.3:h:cisco:dpc3939:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421733-160420a-cmcst:*:*:*:*:*:*:* Versions dpc3939-p20-18-v303r20421733-160420a-cmcst Vulnerable ·Cisco
- cpe:2.3:o:commscope:arris_tg1682g_firmware:10.0.132.sip.pc20.ct:*:*:*:*:*:*:* Versions 10.0.132.sip.pc20.ct Vulnerable ·CommScope, Inc.
- cpe:2.3:o:commscope:arris_tg1682g_firmware:tg1682_2.2p7s2_prod_sey:*:*:*:*:*:*:* Versions tg1682_2.2p7s2_prod_sey Vulnerable ·CommScope, Inc.
- cpe:2.3:h:commscope:arris_tg1682g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·CommScope, Inc.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-9476
- 2026-10-03 Alias added: GHSA-7726-qfpm-w589
References
Sources
- CVE-2017-9476 · CVE Program
- CVE-2017-9476 · NVD
- FIRST EPSS
- GHSA-7726-qfpm-w589 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences