High severity7.5NVD Advisory· Published Jul 31, 2017· Updated Jun 17, 2026

CVE-2017-9481

Description

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to obtain unintended access to the Network Processor (NP) 169.254/16 IP network by adding a routing-table entry that specifies the LAN IP address as the router for that network.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Cisco Systems, Inc./Dpc3939 Firmware
cpe:2.3:o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421746-170221a-cmcst:*:*:*:*:*:*:*
Comcast/Cisco DPC3939llm-fuzzy
Range: = dpc3939-P20-18-v303r20421746-170221a-CMCST

Patches

Vulnerability mechanics

References

github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-24.atom-ip-routing.txtnvdExploitThird Party Advisory

News mentions

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