CVE-2026-24426Network attack vector

Browser script execution via unescaped reflected input

Published Feb 3, 2026 · Updated Feb 3, 2026

Reflected XSS in Tenda AC7 firmware 03.03.03.01_cn and earlier allows remote attackers to run script in a victim's browser. The web management interface places user-controlled input into HTTP responses without context-appropriate escaping, leaving injected HTML and JavaScript executable. Exploitation requires victim interaction with attacker-supplied content that reaches the router interface; successful injection changes browser-rendered content or behavior rather than directly modifying router firmware.

CVSS severity5.1
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Tenda AC7 firmware 03.03.03.01_cn and earlier allows remote attackers to run script in a victim's browser. The web management interface places user-controlled input into HTTP responses without context-appropriate escaping, leaving injected HTML and JavaScript executable. Exploitation requires victim interaction with attacker-supplied content that reaches the router interface; successful injection changes browser-rendered content or behavior rather than directly modifying router firmware.

The record

CVE
CVE-2026-24426
Published
Feb 3, 2026
Updated
Feb 3, 2026
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AC7
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=03.03.03.01_cn

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AC7version=0 <=03.03.03.01_cn

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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