CVE-2026-24110

published 2026-03-02

CVE-2026-24110: An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may send overly long `addDhcpRules` data. When these rules enter the `addDhcpRule` function…

critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may send overly long `addDhcpRules` data. When these rules enter the `addDhcpRule` function and are processed by `ret = sscanf(pRule, " %d\t%[^\t]\t%[^\n\r\t]", &dhcpsIndex, dhcpsIP, dhcpsMac);`, the lack of size validation for the rules could lead to buffer overflows in `dhcpsIndex`, `dhcpsIP`, and `dhcpsMac`.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
tenda	w20e_firmware	—	—

CWE-120