CVE-2017-9521
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST); Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST); Cisco DPC3939B (firmware version dpc3939b-v303r204217-150321a-CMCST); Cisco DPC3941T (firmware version DPC3941_2.5s3_PROD_sey); and Arris TG1682G (eMTA&DOCSIS version 10.0.132.SIP.PC20.CT, software version TG1682_2.2p7s2_PROD_sey) devices allows remote attackers to execute arbitrary code via a specific (but unstated) exposed service. NOTE: the scope of this CVE does NOT include the concept of "Unnecessary Services" in general; the scope is only a single service that is unnecessarily exposed, leading to remote code execution. The details of that service might be disclosed at a later date.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.26% — more likely to be exploited than 88% of all CVEs |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2017-07-31 |
| Last modified | 2026-06-17 |
Affected (8)
| Vendor | Product |
|---|---|
| cisco | dpc3939 |
| cisco | dpc3939 firmware |
| cisco | dpc3939b |
| cisco | dpc3939b firmware |
| cisco | dpc3941t |
| cisco | dpc3941t firmware |
| commscope | arris tg1682g |
| commscope | arris tg1682g firmware |
References
→ the Explorer · watch your stack · NVD