Stack Buffer Overflow in Tenda AC7 Router Affects WAN Configuration
CVE-2026-51846

9.8CRITICAL

Key Information:

Vendor

Tenda
Status
AC7 Router
Vendor
CVE Published:
19 June 2026

What is CVE-2026-51846?

The Tenda AC7 router v15.03.06.44 is affected by a stack buffer overflow vulnerability found in the wanSpeed parameter of the /goform/AdvSetMacMtuWan route. This security flaw allows attackers to exploit the vulnerable parameter to execute arbitrary code remotely, potentially compromising the router's functionality and the network it serves.

References

https://www.kdev.site/cve-request_005/

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.