CVE-2026-24110

critical · 9.8

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`.

9.8

CVSS

0.4%

EPSS (exploit prob.)

36th

EPSS percentile

2026-03-02

Published

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

Weaknesses

CWE-120

Affected products

Vendor	Product	Affected versions
tenda	w20e_firmware	15.11.0.6
tenda	w20e	4.0

Check a specific version with /api/v1/cve/match.

References

https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2026-24110
https://www.tenda.com.cn/material/show/2707

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-24110