CVE-2026-24112 — Classic Buffer Overflow in W20e Firmware

CWE-120 — Classic Buffer Overflow3 documents3 sources
Severity
9.8CRITICALNVD
EPSS
0.1%
top 76.66%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Tenda W20e Firmware
Timeline
PublishedMar 2

Description

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by specifying the value of `userInfo`. When `userInfo` is passed into the `addWewifiWhiteUser` function and processed by `sscanf` without size validation, it could lead to a buffer overflow vulnerability.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages1 packages

▶NVDtenda/w20e_firmware15.11.0.6

🔴Vulnerability Details

2
GHSA
GHSA-vq72-fxfg-gw8p: An issue was discovered in Tenda W20E V4↗2026-03-02
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CVEList
CVE-2026-24112: An issue was discovered in Tenda W20E V4↗2026-03-02
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CVE-2026-24112 — Classic Buffer Overflow in Tenda | cvebase