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Vulnerability record · CVE-2025-6401 · published 21 June 2025

CVE-2025-6401: Totolink n300rh firmware improper resource shutdown vulnerability

TTotolink · N300rh Firmware

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.

2.0 CVSS 4.0 Low EPSS 0.55% · top 56.5% CWE-404 · Improper resource shutdown
2.0CVSS 4.0 base score, v2 2.3
0.55%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References, 3 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/d2pq/cve/blob/main/616/21.md ExploitThird Party Advisory
https://github.com/d2pq/cve/blob/main/616/21.md#poc ExploitThird Party Advisory
https://vuldb.com/?ctiid.313395 Permissions RequiredThird Party AdvisoryVDB Entry
https://vuldb.com/?id.313395 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.597688 Third Party AdvisoryVDB Entry
https://www.totolink.net/ Product
https://github.com/d2pq/cve/blob/main/616/21.md ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.9CVE-2026-3301Totolink n300rh firmware command injection vulnerabilityA security flaw has been discovered in Totolink N300RH 6.1c.1353_B20190305. Affected by this vulnerability is the function setWebWlanIdx of the file …EPSS 4.5%7.4CVE-2025-6400Totolink n300rh firmware memory buffer overflow vulnerabilityA vulnerability was found in TOTOLINK N300RH 6.1c.1390_B20191101 and classified as critical. Affected by this issue is some unknown functionality of …EPSS 0.96%5.5CVE-2026-3696Totolink n300rh firmware command injection vulnerabilityA vulnerability was found in Totolink N300RH 6..1c.1353_B20190305. The affected element is the function setWiFiWpsConfig of the file /cgi-bin/cstecgi…EPSS 2.9%5.3CVE-2025-4851Totolink n300rh firmware injection vulnerabilityA vulnerability classified as critical was found in TOTOLINK N300RH 6.1c.1390_B20191101. This vulnerability affects the function setUploadUserData of…EPSS 1.5%5.3CVE-2025-4849Totolink n300rh firmware injection vulnerabilityA vulnerability was found in TOTOLINK N300RH 6.1c.1390_B20191101. It has been rated as critical. Affected by this issue is the function CloudACMunual…EPSS 1.5%5.3CVE-2025-4850Totolink n300rh firmware injection vulnerabilityA vulnerability classified as critical has been found in TOTOLINK N300RH 6.1c.1390_B20191101. This affects the function setUnloadUserData of the file…EPSS 1.2%7.8CVE-2018-8639Windows Win32k memory handling flaw allows privilege elevationThe Win32k component in Windows fails to properly handle objects in memory, creating an elevation of privilege vulnerability. It affects a broad rang…KEVEPSS 22%analysed7.8CVE-2018-8611Windows Kernel Memory Handling Elevation of PrivilegeThe Windows kernel fails to properly handle objects in memory, allowing a local attacker to elevate privileges. The flaw affects a broad set of Windo…KEVEPSS 4.2%analysed

Source: NIST National Vulnerability Database (record CVE-2025-6401), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.