PT-2026-24914 · Tenda · W3+1

Svigo_O · CVE-2026-3974 · Published 2026-03-12 · Updated 2026-03-12

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Tenda W3 version 1.0.0.3(2204)

Description A flaw exists in the HTTP Handler component of Tenda W3 version 1.0.0.3(2204). Specifically, the formexeCommand function within the /goform/exeCommand file is susceptible to a stack-based buffer overflow. Manipulation of the cmdinput argument can trigger this issue, potentially allowing for remote code execution. The exploit for this issue is publicly available.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, consider disabling the formexeCommand function until a patch is available. Restrict access to the /goform/exeCommand file to minimize the risk of exploitation.

Exploit

Fix

Stack Overflow

Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-121

CWE-119

CWE-787

Related Identifiers

CVE-2026-3974

Affected Products

W3

W3 Firmware

References · 11

• 🔥 https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-w3-formexeCommand-cmdinput-buffer-overflow · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-3974 · Security Note
• https://vuldb.com/?submit.769177 · Note
• https://tenda.com.cn · Note
• https://t.me/CVEtracker/47220 · Telegram Post
• https://t.me/cveNotify/155221 · Telegram Post
• https://twitter.com/CVEnew/status/2031992345743540422 · Twitter Post
• https://vuldb.com/?id.350409 · Note
• https://twitter.com/CVEarity/status/2032076035374924018 · Twitter Post
• https://twitter.com/CveFindCom/status/2031938575965491598 · Twitter Post
• https://vuldb.com/?ctiid.350409 · Note