Description
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.
Published: 2026-11-13
Score: 7 High
EPSS: n/a
KEV: No
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Fri, 13 Nov 2026 15:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Cudy TR3000 before 2.5.42 dnsmasq Configuration Injection via net.set_dhcp
Weaknesses CWE-93
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H'}

cvssV4_0

{'score': 7, 'vector': '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'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-13T15:38:28.886Z

Reserved: 2026-11-13T15:31:00.207Z

Link: CVE-2026-129104

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-13T16:19:00.240

Modified: 2026-11-13T16:19:00.240

Link: CVE-2026-129104

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-93

    Improper Neutralization of CRLF Sequences ('CRLF Injection')