CVE-2023-40039

moderate-risk

Published 2023-09-11

An issue was discovered on ARRIS TG852G, TG862G, and TG1672G devices. A remote attacker (in proximity to a Wi-Fi network) can derive the default WPA2-PSK value by observing a beacon frame.

Do I need to act?

0.55% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (3)

Tg852G Firmware

Tg862G Firmware

Tg1672G Firmware

Affected Vendors

Arris

References (6)

Third Party Advisory https://github.com/actuator/cve/blob/main/Arris/CVE-2023-40039

Product https://i.ebayimg.com/images/g/-UcAAOSwDe1kyD-Z/s-l1600.png

Product https://i.ebayimg.com/images/g/4P0AAOSwdhxkrZtt/s-l1600.jpg

Third Party Advisory https://github.com/actuator/cve/blob/main/Arris/CVE-2023-40039

Product https://i.ebayimg.com/images/g/-UcAAOSwDe1kyD-Z/s-l1600.png

Product https://i.ebayimg.com/images/g/4P0AAOSwdhxkrZtt/s-l1600.jpg

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moderate-risk

Severity 32/34 · Critical

Exploitability 2/34 · Minimal

Exposure 9/34 · Low