CVE-2026-50099: Naxclow Smart Doorbell X3 · Insertion of sensitive information into Externally-Accessible file or directory
Affects Naxclow Smart Doorbell X3Source CVE Database V5
Not known to be exploited · CVSS 5.1 Medium.
Data as of 29 Oct 2026, 19:04 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 12 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| NaxclowSmart Doorbell X3 | Affected
| Fixed in– |
| NaxclowX Smart Home | Affected
| Fixed in– |
| NaxclowV720 | Affected
| Fixed in– |
| Naxclowix cam | Affected
| Fixed in– |
AI-suggested
Until an official fix is available, physical security controls to prevent unauthorized access to the device's UART interface are recommended. Disabling or securing UART access, if possible, and monitoring for firmware updates from Naxclow are advised.
Description
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.