PT-2025-43871 · Tenda · Tenda O3

Yhryhryhr_Tu · Published 2025-10-11 · Updated 2025-10-28 · CVE-2025-12211

Positive Technologies (AI Summary)

CVSS v3.1

9.8

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 O3 version 1.0.0.10(2478)

Description A security flaw exists in Tenda O3 version 1.0.0.10(2478). The issue is related to the SetValue/GetValue function within the /goform/setDmzInfo file. Manipulation of the dmzIP argument can lead to a stack-based buffer overflow. Remote exploitation is possible. The exploit for this issue has been publicly released.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-121

CWE-119

Related Identifiers

BDU:2025-13528

CVE-2025-12211

Affected Products

Tenda O3

References · 12

• 🔥 https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setDmzInfo.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-12211 · Security Note
• https://bdu.fstec.ru/vul/2025-13528 · Security Note
• https://vuldb.com/?id.329881 · Note
• https://vuldb.com/?ctiid.329881 · Note
• https://twitter.com/CveTodo/status/1983081891537273107 · Twitter Post
• https://twitter.com/CveFindCom/status/1982653396357099874 · Twitter Post
• https://twitter.com/CVEnew/status/1982665163955150930 · Twitter Post
• https://t.me/cveNotify/140379 · Telegram Post
• https://tenda.com.cn · Note
• https://t.me/CVEtracker/35784 · Telegram Post
• https://vuldb.com/?submit.673265 · Note