What’s Vulnerable › Vulnerabilities

CVE-2023-6906: Totolink A7100RU HTTP POST Request main buffer overflow

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-12-18 · updated 2026-06-17
• Weakness: CWE-120

Description

A vulnerability, which was classified as critical, was found in Totolink A7100RU 7.4cu.2313_B20191024. Affected is the function main of the file /cgi-bin/cstecgi.cgi?action=login of the component HTTP POST Request Handler. The manipulation of the argument flag with the input ie8 leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-248268. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Totolink A7100RU: 7.4cu.2313_b20191024

References

• https://github.com/unpWn4bL3/iot-security/blob/main/1.md
• https://vuldb.com/?ctiid.248268
• https://vuldb.com/?id.248268
• https://github.com/unpWn4bL3/iot-security/blob/main/1.md
• https://vuldb.com/?ctiid.248268
• https://vuldb.com/?id.248268

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