CVE-2026-38709Public exploitNetwork attack vector

Root command execution via WAN parameter injection

Published Jul 30, 2026 · Updated Jul 30, 2026

Command injection in Cudy TR and WR router firmware allows attackers to execute arbitrary commands as root through net.set_wan. The handler stores unvalidated WAN parameters in UCI, and downstream network scripts interpolate them into command arguments. TR1200 2.4.15, TR3000 2.4.21, WR300 2.4.25, WR1200 2.4.23, WR1300 2.4.22, WR1500 2.3.10, WR3000 2.4.19, WR3600 2.3.16, and WR6500 2.3.15 are affected; CISA scores the path as unauthenticated, while public reproduction on TR3000 requires a valid web session.

CVSS severity9.8
Critical
EPSS probability2.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Command injection in Cudy TR and WR router firmware allows attackers to execute arbitrary commands as root through net.set_wan. The handler stores unvalidated WAN parameters in UCI, and downstream network scripts interpolate them into command arguments. TR1200 2.4.15, TR3000 2.4.21, WR300 2.4.25, WR1200 2.4.23, WR1300 2.4.22, WR1500 2.3.10, WR3000 2.4.19, WR3600 2.3.16, and WR6500 2.3.15 are affected; CISA scores the path as unauthenticated, while public reproduction on TR3000 requires a valid web session.

The record

CVE
CVE-2026-38709
Published
Jul 30, 2026
Updated
Jul 30, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo