CVE-2025-52221

Tenda AC6 15.03.05.16_multi is vulnerable to Buffer Overflow in the formSetCfm function via the funcname, funcpara1, and funcpara2 parameters.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/faqiadegege/IoTVuln/blob/main/tendaAc6_formSetCfm_funcname_overflow/detail.md	Exploit Third Party Advisory
https://github.com/xiaotea/iot-vulnerability-collection/blob/main/README.md	Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:ac6_firmware:15.03.05.16_multi:*:*:*:*:*:*:*

cpe:2.3:h:tenda:ac6:1.0:*:*:*:*:*:*:*

History

25 Jul 2026, 10:10

Type	Values Removed	Values Added
Summary		(es) Tenda AC6 15.03.05.16_multi es vulnerable a desbordamiento de búfer en la función formSetCfm a través de los parámetros funcname, funcpara1 y funcpara2.

13 Apr 2026, 11:36

Type	Values Removed	Values Added
References	~~() https://github.com/faqiadegege/IoTVuln/blob/main/tendaAc6_formSetCfm_funcname_overflow/detail.md -~~	() https://github.com/faqiadegege/IoTVuln/blob/main/tendaAc6_formSetCfm_funcname_overflow/detail.md - Exploit, Third Party Advisory
References	~~() https://github.com/xiaotea/iot-vulnerability-collection/blob/main/README.md -~~	() https://github.com/xiaotea/iot-vulnerability-collection/blob/main/README.md - Third Party Advisory
CPE		cpe:2.3:h:tenda:ac6:1.0:::::::* cpe:2.3:o:tenda:ac6_firmware:15.03.05.16_multi:::::::*
CWE		CWE-787
CVSS	v2 : ~~unknown~~ v3 : ~~7.5~~	v2 : unknown v3 : 9.8
First Time		Tenda Tenda ac6 Firmware Tenda ac6

10 Apr 2026, 16:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
CWE		CWE-120

08 Apr 2026, 18:24

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-08 18:24

Updated : 2026-07-25 10:10

NVD link : CVE-2025-52221

Mitre link : CVE-2025-52221

CVE.ORG link : CVE-2025-52221

JSON object : View

Products Affected

tenda

ac6_firmware
ac6

CWE

CWE-787

Out-of-bounds Write

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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