CVE-2026-51843

Tenda AC7 v15.03.06.44 contains a stack buffer overflow vulnerability in the /goform/AdvSetMacMtuWan interface via the wanMTU parameter.

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://www.kdev.site/cve-request_008/	Exploit Third Party Advisory
https://www.kdev.site/cve-request_008/	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:ac7_firmware:15.03.06.44:*:*:*:*:*:*:*

cpe:2.3:h:tenda:ac7:-:*:*:*:*:*:*:*

History

09 Jul 2026, 16:29

Type	Values Removed	Values Added
First Time		Tenda ac7 Tenda Tenda ac7 Firmware
CPE		cpe:2.3:o:tenda:ac7_firmware:15.03.06.44:::::::* cpe:2.3:h:tenda:ac7:-:::::::*
References	~~() https://www.kdev.site/cve-request_008/ -~~	() https://www.kdev.site/cve-request_008/ - Exploit, Third Party Advisory

22 Jun 2026, 18:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8
References	~~() https://www.kdev.site/cve-request_008/ -~~	() https://www.kdev.site/cve-request_008/ -
CWE		CWE-121

19 Jun 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-19 17:16

Updated : 2026-07-09 16:29

NVD link : CVE-2026-51843

Mitre link : CVE-2026-51843

CVE.ORG link : CVE-2026-51843

JSON object : View

Products Affected

tenda

ac7_firmware
ac7

CWE

CWE-121

Stack-based Buffer Overflow

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