How severe is CVE-2026-31850?

CVE-2026-31850 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-31850 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-31850?

CVE-2026-31850 affects Nexxtsolutions Nebula300plus Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-31850?

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

Does CVE-2026-31850 have an EU (EUVD) identifier?

Yes. CVE-2026-31850 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14419.

When was CVE-2026-31850 published?

CVE-2026-31850 was published on 2026-03-23 and last updated on 2026-06-17.

CVE-2026-31850

CVE-2026-31850 is a medium-severity vulnerability in Nexxtsolutions Nebula300plus Firmware with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-256.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
CVSS v4: 6.8
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-14419
Weakness: CWE-256
Affected product: Nexxtsolutions Nebula300plus Firmware
Published: 2026-03-23
Last modified: 2026-06-17

Description

Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 stores sensitive information, including administrative credentials and WiFi pre-shared keys, in plaintext within exported configuration backup files. These backup files can be obtained through legitimate functionality or other weaknesses and do not apply encryption or hashing, allowing attackers to directly extract sensitive information.

Frequently asked questions

What is CVE-2026-31850?: Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 stores sensitive information, including administrative credentials and WiFi pre-shared keys, in plaintext within exported configuration backup files. These backup files can be obtained through legitimate functionality or other weaknesses and do not apply encryption or hashing, allowing attackers to directly extract sensitive information.
How severe is CVE-2026-31850?: CVE-2026-31850 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-31850 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-31850?: CVE-2026-31850 affects Nexxtsolutions Nebula300plus Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-31850?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-31850 have an EU (EUVD) identifier?: Yes. CVE-2026-31850 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14419.
When was CVE-2026-31850 published?: CVE-2026-31850 was published on 2026-03-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:nexxtsolutions:nebula300plus_firmware:*:*:*:*:*:*:*:*

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