CVE-2025-71026

Tenda AX-3 v16.03.12.10_CN was discovered to contain a stack overflow in the wanSpeed2 parameter of the fromAdvSetMacMtuWan function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/0-fool/VulnbyCola/blob/main/Tenda/AX-3/9/1.md	Exploit Third Party Advisory
https://github.com/0-fool/VulnbyCola/blob/main/Tenda/AX-3/9/1.md	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:ax3_firmware:16.03.12.10_cn:*:*:*:*:*:*:*

cpe:2.3:h:tenda:ax3:-:*:*:*:*:*:*:*

History

16 Jan 2026, 18:23

Type	Values Removed	Values Added
First Time		Tenda Tenda ax3 Tenda ax3 Firmware
CWE		CWE-787
CPE		cpe:2.3:o:tenda:ax3_firmware:16.03.12.10_cn:::::::* cpe:2.3:h:tenda:ax3:-:::::::*
References	~~() https://github.com/0-fool/VulnbyCola/blob/main/Tenda/AX-3/9/1.md -~~	() https://github.com/0-fool/VulnbyCola/blob/main/Tenda/AX-3/9/1.md - Exploit, Third Party Advisory

16 Jan 2026, 16:15

Type	Values Removed	Values Added
References	~~() https://github.com/0-fool/VulnbyCola/blob/main/Tenda/AX-3/9/1.md -~~	() https://github.com/0-fool/VulnbyCola/blob/main/Tenda/AX-3/9/1.md -
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
CWE		CWE-121

13 Jan 2026, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-13 16:16

Updated : 2026-01-16 18:23

NVD link : CVE-2025-71026

Mitre link : CVE-2025-71026

CVE.ORG link : CVE-2025-71026

JSON object : View

Products Affected

tenda

ax3
ax3_firmware

CWE

CWE-787

Out-of-bounds Write

CWE-121

Stack-based Buffer Overflow

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