PT-2026-2580 · Tenda · Tenda Ax3

Published 2025-12-29 · Updated 2026-01-20 · CVE-2025-71023

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Tenda AX-3 version 16.03.12.10 CN

Description The Tenda AX-3 device contains a stack overflow in the mac2 parameter of the fromAdvSetMacMtuWan function. This issue allows attackers to cause a Denial of Service (DoS) by sending a crafted request.

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

Exploit

Fix

DoS

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

BDU:2026-00565

CVE-2025-71023

Affected Products

Tenda Ax3

References · 6

• 🔥 https://github.com/0-fool/VulnbyCola/blob/main/Tenda/AX-3/11/1.md · Exploit
• https://bdu.fstec.ru/vul/2026-00565 · Security Note
• https://osv.dev/vulnerability/CVE-2025-71023 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-71023 · Security Note
• https://t.me/cveNotify/149314 · Telegram Post
• https://twitter.com/CVEnew/status/2011112415610519902 · Twitter Post