What is CVE-2026-24426?

CVE-2026-24426 is a medium-severity vulnerability in Shenzhen Tenda Technology Co., Ltd. Ac7, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-02-03.

How severe is CVE-2026-24426?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Shenzhen Tenda Technology Co., Ltd. Ac7

CVE-2026-24426

Shenzhen Tenda AC7 firmware version V03.03.03.01_cn and prior contain an improper output encoding vulnerability in the web management interface. User-supplied input is reflected in HTTP responses without adequate escaping, allowing injection of arbitrary HTML or JavaScript in a victim’s browser context.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-02-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (8.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Shenzhen Tenda Technology Co., Ltd. Ac7 — versions 0
Tenda Ac7
Tenda Ac7 Firmware

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.tendacn.com/product/AC7 (Product, product)
www.vulncheck.com/advisories/tenda-ac7-reflected-xss-via-web-interface-output-e… (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-24426?: CVE-2026-24426 is a medium-severity vulnerability in Shenzhen Tenda Technology Co., Ltd. Ac7, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-02-03.
How severe is CVE-2026-24426?: Medium severity. CVSS v3 base score is 6.1 out of 10.