CVE-2026-24110
CRITICALTenda W20E V4.0br_V15.11.0.6 - Buffer Overflow
Title source: llmDescription
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`.
Scores
CVSS v3
9.8
EPSS
0.0005
EPSS Percentile
16.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Classification
CWE
CWE-120
Status
published
Affected Products (1)
tenda/w20e_firmware
Timeline
Published
Mar 02, 2026
Tracked Since
Mar 02, 2026