Improper Output Encoding in Tenda AC7 Firmware by Shenzhen Tenda
CVE-2026-24426

5.1MEDIUM

Key Information:

Vendor

Shenzhen Tenda Technology Co., Ltd.

Status
Tenda Ac7
Vendor
CVE Published:
3 February 2026

What is CVE-2026-24426?

The Tenda AC7 firmware has a significant flaw in its web management interface, specifically related to improper output encoding. This vulnerability allows user-supplied input to be reflected in HTTP responses without adequate escaping, posing a risk of arbitrary HTML or JavaScript being executed in the context of a victim's browser. This not only compromises the integrity of user interactions with the web interface but also opens avenues for potential exploitation through cross-site scripting (XSS) attacks.

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Affected Version(s)

Tenda AC7 0 <= 03.03.03.01_cn

References

https://www.tendacn.com/product/AC7
product
https://www.vulncheck.com/advisories/tenda-ac7-reflected-...
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kazuma Matsumoto, a security researcher at GMO Cybersecurity by IERAE, Inc.
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