PT-2026-3841 · Tenda · Tenda Ax3

Published 2026-01-21 · Updated 2026-01-21 · CVE-2025-69766

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 AX3 firmware version 16.03.12.11

Description The Tenda AX3 firmware contains a stack-based buffer overflow in the formGetIptv function. This is due to improper handling of the citytag stack buffer, potentially leading to memory corruption and remote code execution.

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

Exploit

RCE

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2025-69766

Affected Products

Tenda Ax3

References · 5

• 🔥 https://river-brow-763.notion.site/Tenda-AX3-Buffer-Overflow-in-formGetIptv-2c9a595a7aef8043a091e6722b8e255a · Exploit
• 🔥 https://river-brow-763.notion.site/Tenda-AX3-Buffer-Overflow-in-formGetIptv-2c9a595a7aef8043a091e6722b8e255a?source=copy_link · Exploit
• https://osv.dev/vulnerability/CVE-2025-69766 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-69766 · Security Note
• https://t.me/CVEtracker/42681 · Telegram Post