CVE-2017-5135
Certain Technicolor devices have an SNMP access-control bypass, possibly involving an ISP customization in some cases.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 17.9%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.0
- 9.1 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 17.85% probability · 97th percentile
- Public exploits
- 1 in Exploit-DB · first 5 May 2017
- CISA KEV
- Not listed
- Affected
- technicolor/dpc3928sl firmware
- Source
- cve@mitre.org
EPSS moved from 12.0% on 21 September 2026 to 17.9% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://www.securityfocus.com/bid/98092Third Party Advisory, VDB Entry
- https://stringbleed.github.io/Technical Description, Third Party Advisory
- https://www.reddit.com/r/netsec/comments/67qt6u/cve_20175135_snmp_authentication_bypass/Press/Media Coverage, Third Party Advisory
- http://www.securityfocus.com/bid/98092Third Party Advisory, VDB Entry
- https://stringbleed.github.io/Technical Description, Third Party Advisory
- https://www.reddit.com/r/netsec/comments/67qt6u/cve_20175135_snmp_authentication_bypass/Press/Media Coverage, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.