CVE-2019-7439: Jio Jiofi 4g m2s Firmware

Medium severity, CVSS 6.5. EPSS: 4.8% chance of exploitation in the next 30 days.

cgi-bin/qcmap_web_cgi on JioFi 4G M2S 1.0.2 devices allows a DoS (Hang) via the mask POST parameter.

Affected products

• Jio Jiofi 4g m2s Firmware: version 1.0.2 only

Published 2019-03-21. Last modified 2026-06-17.