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Vulnerability record · CVE-2018-20439 · published 25 December 2018

CVE-2018-20439: Technicolor dpc3928sl firmware insufficiently protected credentials vulnerability

Technicolor · Dpc3928sl Firmware

Technicolor DPC3928SL D3928SL-PSIP-13-A010-c3420r55105-170214a devices allow remote attackers to discover Wi-Fi credentials via iso.3.6.1.4.1.4413.2.2.2.1.5.4.1.14.1.3.10001 and 1.3.6.1.4.1.4413.2.2.2.1.18.1.2.3.4.1.2.10001 SNMP requests.

9.8 CVSS 3.0 Critical EPSS 1.3% · top 30.9% CWE-522 · Insufficiently protected credentials
9.8CVSS 3.0 base score, v2 5.0
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Technicolor DPC3928SL D3928SL-PSIP-13-A010-c3420r55105-170214a devices allow remote attackers to discover Wi-Fi credentials via iso.3.6.1.4.1.4413.2.2.2.1.5.4.1.14.1.3.10001 and 1.3.6.1.4.1.4413.2.2.2.1.18.1.2.3.4.1.2.10001 SNMP requests.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://misteralfa-hack.blogspot.com/2018/12/technicolor-passwords-wireless-via-snmp.html Third Party Advisory
https://misteralfa-hack.blogspot.com/2018/12/technicolor-passwords-wireless-via-snmp.html Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-20439), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.