PT-2026-22611 · Tenda · Tenda W20E

Akuma-Qaq · Published 2026-03-02 · Updated 2026-03-07 · CVE-2026-24112

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Tenda W20E version 4.0br V15.11.0.6

Description A buffer overflow issue exists in the addWewifiWhiteUser function of Tenda W20E routers. The issue is related to out-of-bounds write access within the userInfo parameter. Exploitation could allow a remote attacker to execute arbitrary commands. The addWewifiWhiteUser function processes the userInfo variable using sscanf without proper size validation, leading to the buffer overflow.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, consider disabling the addWewifiWhiteUser function until a patch is available.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2026-02504

CVE-2026-24112

Affected Products

Tenda W20E

References · 9

• 🔥 https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2026-24112 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-24112 · Security Note
• https://osv.dev/vulnerability/CVE-2026-24112 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-02504 · Security Note
• https://twitter.com/cracbot/status/2029874847443251642 · Twitter Post
• https://twitter.com/cracbot/status/2030237141465481596 · Twitter Post
• https://t.me/cveNotify/153967 · Telegram Post
• https://tenda.com.cn/material/show/2707 · Note
• https://twitter.com/cracbot/status/2029512387502739612 · Twitter Post