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Vulnerability record · CVE-2023-43141 · published 25 September 2023

CVE-2023-43141: Totolink a3700r firmware improper access control vulnerability

TTotolink · A3700r Firmware

TOTOLINK A3700R V9.1.2u.6134_B20201202 and N600R V5.3c.5137 are vulnerable to Incorrect Access Control.

9.8 CVSS 3.1 Critical EPSS 0.79% · top 45.6% CWE-284 · Improper access control
9.8CVSS 3.1 base score
0.79%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References, 2 tagged exploit
9 Jul 2026Last modified by NVD

Description

TOTOLINK A3700R V9.1.2u.6134_B20201202 and N600R V5.3c.5137 are vulnerable to Incorrect Access Control.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
https://github.com/Blue-And-White/vul/blob/main/Iot/TOTOLINK/1/readme.md Broken LinkExploitThird Party Advisory
https://github.com/Blue-And-White/vul/blob/main/Iot/TOTOLINK/1/readme.md Broken LinkExploitThird Party Advisory

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Related vulnerabilities

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

9.8CVE-2025-51390Totolink n600r firmware os command injection vulnerabilityTOTOLINK N600R V4.3.0cu.7647_B20210106 was discovered to contain a command injection vulnerability via the pin parameter in the setWiFiWpsConfig func…EPSS 1.8%9.8CVE-2025-46060Totolink n600r firmware classic buffer overflow vulnerabilityBuffer Overflow vulnerability in TOTOLINK N600R v4.3.0cu.7866_B2022506 allows a remote attacker to execute arbitrary code via the UPLOAD_FILENAME com…EPSS 0.97%9.8CVE-2025-22900Totolink n600r firmware stack-based buffer overflow vulnerabilityTotolink N600R v4.3.0cu.7647_B20210106 was discovered to contain a stack overflow via the macCloneMac parameter in the setWanConfig function.EPSS 0.55%9.8CVE-2024-42543Totolink a3700r firmware classic buffer overflow vulnerabilityTOTOLINK A3700R v9.1.2u.5822_B20200513 has a buffer overflow vulnerability in the http_host parameter in the loginauth function.EPSS 0.66%9.8CVE-2024-42545Totolink a3700r firmware classic buffer overflow vulnerabilityTOTOLINK A3700R v9.1.2u.5822_B20200513 has a buffer overflow vulnerability in the ssid parameter in setWizardCfg function.EPSS 0.66%9.8CVE-2024-37637Totolink a3700r firmware classic buffer overflow vulnerabilityTOTOLINK A3700R V9.1.2u.6165_20211012 was discovered to contain a stack overflow via ssid5g in the function setWizardCfg.EPSS 0.67%9.8CVE-2024-37632Totolink a3700r firmware classic buffer overflow vulnerabilityTOTOLINK A3700R V9.1.2u.6165_20211012 was discovered to contain a stack overflow via the password parameter in function loginAuth .EPSS 0.64%9.8CVE-2024-37634Totolink a3700r firmware stack-based buffer overflow vulnerabilityTOTOLINK A3700R V9.1.2u.6165_20211012 was discovered to contain a stack overflow via ssid in the function setWiFiEasyCfg.EPSS 0.67%

Source: NIST National Vulnerability Database (record CVE-2023-43141), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.