How severe is CVE-2019-7439?

CVE-2019-7439 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-7439 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-7439?

CVE-2019-7439 affects Jio Jiofi 4g M2s Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-7439?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-7439 published?

CVE-2019-7439 was published on 2019-03-21 and last updated on 2026-06-17.

CVE-2019-7439

CVE-2019-7439 is a medium-severity vulnerability in Jio Jiofi 4g M2s Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.1
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Jio Jiofi 4g M2s Firmware
Published: 2019-03-21
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2019-7439?: cgi-bin/qcmap_web_cgi on JioFi 4G M2S 1.0.2 devices allows a DoS (Hang) via the mask POST parameter.
How severe is CVE-2019-7439?: CVE-2019-7439 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-7439 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-7439?: CVE-2019-7439 affects Jio Jiofi 4g M2s Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-7439?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-7439 published?: CVE-2019-7439 was published on 2019-03-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:jio:jiofi_4g_m2s_firmware:1.0.2:*:*:*:*:*:*:*

More vulnerabilities in Jio Jiofi 4g M2s Firmware

CVE-2019-7440 — Medium (CVSS 6.5): JioFi 4G M2S 1.0.2 devices have CSRF via the SSID name and Security Key field under Edit Wi-Fi Settings (aka a…
CVE-2019-7438 — Medium (CVSS 6.1): cgi-bin/qcmap_web_cgi on JioFi 4G M2S 1.0.2 devices has XSS and HTML injection via the mask POST parameter.

All CVEs affecting Jio Jiofi 4g M2s Firmware →