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CVE-2026-129104 Cudy TR3000 before 2.5.42 dnsmasq Configuration Injection via net.set_dhcp

7.0 high

High (7.0) in shenzhen cudy technology co., ltd. tr3000 1.0.

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Cudy TR3000 before 2.5.42 contains a dnsmasq configuration injection vulnerability that allows authenticated administrators to inject directives by embedding a newline in the net.set_dhcp leasetime field. Attackers can append address= entries via /etc/init.d/dnsmasq to alter DNS answers for LAN clients, or insert invalid lines that stop dnsmasq.

Severity

CVSS 4.0

7.0 high
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

6.5 medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
CWE
CWE-93 Improper Neutralization of CRLF Sequences (CRLF Injection)
OWASP Top 10
A05:2025 Injection
Published
Assigned by
VulnCheck (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

  • shenzhen cudy technology co., ltd.:tr3000 1.0

Versions

From the CNA's record in the CVE List.

ProductAffected
Shenzhen Cudy Technology Co., Ltd. TR3000 1.0before 2.5.42

Attack patterns (CAPEC)

  • CAPEC-15 Command Delimiters Likelihood: High · Severity: High
  • CAPEC-81 Web Server Logs Tampering Likelihood: Medium · Severity: High

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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