Auth bypass in Arris Dg1670a
CVE-2023-40038
Arris DG860A and DG1670A devices have predictable default WPA2 PSKs that could lead to unauthorized remote access. (They use the first 6 characters of the SSID and the last 6 characters of the BSSID, decrementing the last digit.)
Vulnerability class: Broken Authentication
EPSS: 0.003 (24.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Arris Dg1670a
- Arris Dg1670a_firmware — versions ts0901203b6_020420_16xx.gw_pc20_tw
- Arris Dg860a
- Arris Dg860a_firmware
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Product)
- cve@mitre.org (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-40038?
- CVE-2023-40038 is a high-severity vulnerability in Arris Dg1670a, classified under Improper Authentication. CVSS score: 8.8/10. Published 2023-12-27.
- How severe is CVE-2023-40038?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2023-40038 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.