How severe is CVE-2025-52379?

CVE-2025-52379 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-52379 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-52379?

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

Does CVE-2025-52379 have an EU (EUVD) identifier?

Yes. CVE-2025-52379 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21451.

When was CVE-2025-52379 published?

CVE-2025-52379 was published on 2025-07-15 and last updated on 2026-06-17.

CVE-2025-52379

CVE-2025-52379 is a medium-severity vulnerability with a CVSS 3.x base score of 5.4. 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-78.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-21451
Weakness: CWE-78
Published: 2025-07-15
Last modified: 2026-06-17

Description

Nexxt Solutions NCM-X1800 Mesh Router firmware UV1.2.7 and below contains an authenticated command injection vulnerability in the firmware update feature. The /web/um_fileName_set.cgi and /web/um_web_upgrade.cgi endpoints fail to properly sanitize the upgradeFileName parameter, allowing authenticated attackers to execute arbitrary OS commands on the device, resulting in remote code execution.

Frequently asked questions

What is CVE-2025-52379?: Nexxt Solutions NCM-X1800 Mesh Router firmware UV1.2.7 and below contains an authenticated command injection vulnerability in the firmware update feature. The /web/um_fileName_set.cgi and /web/um_web_upgrade.cgi endpoints fail to properly sanitize the upgradeFileName parameter, allowing authenticated attackers to execute arbitrary OS commands on the device, resulting in remote code execution.
How severe is CVE-2025-52379?: CVE-2025-52379 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-52379 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-52379?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-52379 have an EU (EUVD) identifier?: Yes. CVE-2025-52379 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21451.
When was CVE-2025-52379 published?: CVE-2025-52379 was published on 2025-07-15 and last updated on 2026-06-17.

References

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