What is CVE-2026-31846?

CVE-2026-31846 is a medium-severity vulnerability in Nexxt Solutions Nebula 300+ / Tenda F3 V2.0 Firmware, classified under Missing Authentication for Critical Function. CVSS score: 6.5/10. Published 2026-03-23.

How severe is CVE-2026-31846?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Nexxt Solutions Nebula 300+ / Tenda F3 V2.0 Firmware

CVE-2026-31846

Missing authentication in the /goform/ate endpoint in Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 allows an adjacent unauthenticated attacker to retrieve sensitive device information, including the administrator passwo…

Vulnerability class: Broken Authentication

EPSS: 0.001 (17.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Nexxt Solutions Nebula 300+ / Tenda F3 V2.0 Firmware — versions <= 12.01.01.37

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (product)
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (product)

Frequently asked questions

What is CVE-2026-31846?: CVE-2026-31846 is a medium-severity vulnerability in Nexxt Solutions Nebula 300+ / Tenda F3 V2.0 Firmware, classified under Missing Authentication for Critical Function. CVSS score: 6.5/10. Published 2026-03-23.
How severe is CVE-2026-31846?: Medium severity. CVSS v3 base score is 6.5 out of 10.