CVE-2026-129105
Cudy TR3000 before 2.5.42 pppd Option Injection via net.set_wan L2TP Credentials
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
Cudy TR3000 before 2.5.42 contains an option injection vulnerability that allows authenticated administrators to inject arbitrary pppd options by embedding quotes and newlines in L2TP credentials. Attackers can submit crafted usernames or passwords to the net.set_wan RPC method, which l2tp.sh writes into a pppd options file, adding options like logfile to the root pppd process.
| CWE | CWE-93 |
| Vendor | shenzhen cudy technology co., ltd. |
| Product | tr3000 1.0 |
| Published | Nov 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High
Affected Versions
Shenzhen Cudy Technology Co., Ltd. / TR3000 1.0
0 < 2.5.42
References
cudy.com: https://www.cudy.com/en-us/pages/download-center/tr3000-1-0 d1jvyy13vm72kv.cloudfront.net: https://d1jvyy13vm72kv.cloudfront.net/device/upgrade/m_upgrade_TR3000_256MB_Flash-R103-2.5.42-20261103-160202-sysupgrade_82672.zip vulncheck.com: https://www.vulncheck.com/advisories/cudy-tr3000-before-2.5.42-pppd-option-injection-via-net-set-wan-l2tp-credentials