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Vulnerability record · CVE-2024-42543 · published 12 August 2024

CVE-2024-42543: Totolink a3700r firmware classic buffer overflow vulnerability

TTotolink · A3700r Firmware

TOTOLINK A3700R v9.1.2u.5822_B20200513 has a buffer overflow vulnerability in the http_host parameter in the loginauth function.

9.8 CVSS 3.1 Critical EPSS 0.66% · top 50.3% CWE-120 · Classic buffer overflow
9.8CVSS 3.1 base score
0.66%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

TOTOLINK A3700R v9.1.2u.5822_B20200513 has a buffer overflow vulnerability in the http_host parameter in the loginauth function.

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

Affected products

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

References

LinkTags
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/TOTOLINK/A3700R/loginauth.md ExploitThird Party Advisory

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Related vulnerabilities

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

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%9.8CVE-2024-37635Totolink a3700r firmware classic buffer overflow vulnerabilityTOTOLINK A3700R V9.1.2u.6165_20211012 was discovered to contain a stack overflow via ssid in the function setWiFiBasicCfgEPSS 0.66%9.8CVE-2024-22660Totolink a3700r firmware out-of-bounds write vulnerabilityTOTOLINK_A3700R_V9.1.2u.6165_20211012has a stack overflow vulnerability via setLanguageCfgEPSS 0.86%9.8CVE-2024-22662Totolink a3700r firmware out-of-bounds write vulnerabilityTOTOLINK A3700R_V9.1.2u.6165_20211012 has a stack overflow vulnerability via setParentalRulesEPSS 0.86%9.8CVE-2024-22663Totolink a3700r firmware command injection vulnerabilityTOTOLINK_A3700R_V9.1.2u.6165_20211012has a command Injection vulnerability via setOpModeCfgEPSS 1.7%

Source: NIST National Vulnerability Database (record CVE-2024-42543), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.