CVE-2017-5135: Technicolor DPC3928SL Firmware

Critical severity, CVSS 9.1. EPSS: 17.9% chance of exploitation in the next 30 days.

Certain Technicolor devices have an SNMP access-control bypass, possibly involving an ISP customization in some cases. The Technicolor (formerly Cisco) DPC3928SL with firmware D3928SL-P15-13-A386-c3420r55105-160127a could be reached by any SNMP community string from the Internet; also, you can write in the MIB because it provides write properties, aka Stringbleed. NOTE: the string-bleed/StringBleed-CVE-2017-5135 GitHub repository is not a valid reference as of 2017-04-27; it contains Trojan horse code purported to exploit this vulnerability.

Affected products

• Technicolor DPC3928SL Firmware: version d3928sl-p15-13-a386-c3420r55105-160127a only

Published 2017-04-27. Last modified 2026-06-17.