CVE-2026-50099
MEDIUMDescription
During WiFi association, Naxclow device firmware prints the host network’s SSID, PSK, and negotiated WPA keys in cleartext to an exposed UART console on production hardware. The UART pads are labeled, run with default serial settings, and drop to an interactive RT-Thread shell that permits arbitrary memory reads, enabling full firmware extraction. An attacker with brief physical access, common for outdoor-mounted devices, can therefore recover WiFi credentials and bootstrap firmware-side attacks.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 7% of all known CVEs.
References
Related Vulnerabilities
Other CWE-538 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-51977 | Medium | 5.3 | 78% | - | - |
| CVE-2019-6851 | High | 7.5 | 30% | - | - |
| CVE-2017-9947 | Medium | 5.3 | 7.3% | - | Fix |
| CVE-2018-11798 | Medium | 6.5 | 4.9% | - | Fix |
| CVE-2017-16770 | Medium | 6.5 | 1.8% | - | Fix |
| CVE-2018-10590 | High | 7.5 | 1.7% | - | Fix |
Common questions
How do I fix CVE-2026-50099?
No published fix for CVE-2026-50099 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-50099 being actively exploited?
Not that we know of. CVE-2026-50099 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.17% is the estimated probability that it will be exploited in the next 30 days. That is higher than 7% of all scored CVEs.
How severe is CVE-2026-50099?
CVE-2026-50099 has a CVSS v3 base score of 4.6, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-16.