CVE-2017-9489: Cisco DPC3939B Firmware

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

The Comcast firmware on Cisco DPC3939B (firmware version dpc3939b-v303r204217-150321a-CMCST) devices allows configuration changes via CSRF.

Affected products

• Cisco DPC3939B Firmware: version dpc3939b-v303r204217-150321a-cmcst only
• Commscope Arris TG1682G Firmware: version 10.0.132.sip.pc20.ct only; version tg1682_2.2p7s2_prod_sey only

Published 2017-07-31. Last modified 2026-06-17.