An issue was discovered on ARRIS TG852G, TG862G, and TG1672G devices.
Priority MEDIUM 51CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-284.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01207 68th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:arris:tg852g_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Arris |
| cpe:2.3:h:arris:tg852g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arris |
| cpe:2.3:o:arris:tg862g_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Arris |
| cpe:2.3:h:arris:tg862g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arris |
| cpe:2.3:o:arris:tg1672g_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Arris |
| cpe:2.3:h:arris:tg1672g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arris |
- cpe:2.3:o:arris:tg852g_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Arris
- cpe:2.3:h:arris:tg852g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arris
- cpe:2.3:o:arris:tg862g_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Arris
- cpe:2.3:h:arris:tg862g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arris
- cpe:2.3:o:arris:tg1672g_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Arris
- cpe:2.3:h:arris:tg1672g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arris
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-40039
- 2026-10-03 Alias added: GHSA-8758-wxjc-xqrh
References
Sources
- CVE-2023-40039 · CVE Program
- CVE-2023-40039 · NVD
- FIRST EPSS
- GHSA-8758-wxjc-xqrh · GitHub Advisory Database · CC BY 4.0
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