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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.004 (27.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000
Affected products
- Arris Dg1670a
- Arris Dg1670a Firmware — versions ts0901203b6_020420_16xx.gw_pc20_tw
- Arris Dg860a
- Arris Dg860a Firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- i.ebayimg.com/images/g/ByAAAOSwQCFi2b50/s-l1600.jpg (Product)
- github.com/actuator/cve/blob/main/Arris/CVE-2023-40038 (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.