CVE-2017-5135 in the critical feed json
Certain Technicolor devices have an SNMP access-control bypass, possibly involving an ISP customization in some cases.
published 2017-04-27 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-14244
- cvss
- 9.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 17.9%
- EPSS 17.9% chance of exploitation in 30 days, percentile 97%
- public exploits
- 1
- Exploit-DB
Summary
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.
Timeline
- Published
- First public exploit (EDB-43384)
Exploit prediction
17.85% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- EDB-43384 Technicolor DPC3928SL - SNMP Authentication Bypass remote, 2017-05-05
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 9.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVD | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:P/I:P/A:N |
References
-
stringbleed.github.io
/
technical-description, third-party-advisory
-
securityfocus.com
/bid/98092
vdb-entry, third-party-advisory
-
reddit.com
/r/netsec/comments/67qt6u/cve_20175135_snmp_authentication_bypass/
press/media-coverage, third-party-advisory
Sources
- CVE List CVE-2017-5135
- NVD CVE-2017-5135
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.