How severe is CVE-2025-6401?

CVE-2025-6401 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-6401 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-6401?

CVE-2025-6401 affects Totolink N300rh Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-6401?

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

Does CVE-2025-6401 have an EU (EUVD) identifier?

Yes. CVE-2025-6401 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18807.

When was CVE-2025-6401 published?

CVE-2025-6401 was published on 2025-06-21 and last updated on 2026-06-17.

CVE-2025-6401

CVE-2025-6401 is a low-severity vulnerability in Totolink N300rh Firmware with a CVSS 3.x base score of 3.5. 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-404.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v2: 2.3
CVSS v4: 2.0
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-18807
Weakness: CWE-404
Affected product: Totolink N300rh Firmware
Published: 2025-06-21
Last modified: 2026-06-17

Description

A vulnerability was found in TOTOLINK N300RH 6.1c.1390_B20191101. It has been classified as problematic. This affects an unknown part of the file /boafrm/formFilter of the component HTTP POST Message Handler. The manipulation of the argument url leads to denial of service. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2025-6401?: A vulnerability was found in TOTOLINK N300RH 6.1c.1390_B20191101. It has been classified as problematic. This affects an unknown part of the file /boafrm/formFilter of the component HTTP POST Message Handler. The manipulation of the argument url leads to denial of service. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-6401?: CVE-2025-6401 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-6401 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-6401?: CVE-2025-6401 affects Totolink N300rh Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-6401?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-6401 have an EU (EUVD) identifier?: Yes. CVE-2025-6401 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18807.
When was CVE-2025-6401 published?: CVE-2025-6401 was published on 2025-06-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:totolink:n300rh_firmware:6.1c.1390_b20191101:*:*:*:*:*:*:*

More vulnerabilities in Totolink N300rh Firmware

CVE-2026-3301 — Critical (CVSS 9.8): A security flaw has been discovered in Totolink N300RH 6.1c.1353_B20190305. Affected by this vulnerability is the…
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