DrayTek Vigor LTE200 CGI Endpoint unrestricted upload

Summaryinfo

A vulnerability, which was classified as critical, has been found in DrayTek Vigor 165, Vigor 166, Vigor 2133, Vigor 2135, Vigor 2620, Vigor 2762, Vigor 2765, Vigor 2766, Vigor 2832, Vigor 2860, Vigor 2862, Vigor 2865, Vigor 2866, Vigor 2925, Vigor 2925, Vigor 2926, Vigor 2927, Vigor 2962, Vigor 3910, Vigor 3912 and Vigor LTE200. This affects an unknown function of the component CGI Endpoint. Performing a manipulation results in unrestricted upload. This vulnerability is identified as CVE-2024-41339. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in DrayTek Vigor 165, Vigor 166, Vigor 2133, Vigor 2135, Vigor 2620, Vigor 2762, Vigor 2765, Vigor 2766, Vigor 2832, Vigor 2860, Vigor 2862, Vigor 2865, Vigor 2866, Vigor 2925, Vigor 2925, Vigor 2926, Vigor 2927, Vigor 2962, Vigor 3910, Vigor 3912 and Vigor LTE200. This affects an unknown functionality of the component CGI Endpoint. The manipulation with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An issue in the CGI endpoint used to upload configurations in Draytek devices Vigor 165/166 prior to v4.2.6 , Vigor 2620/LTE200 prior to v3.9.8.8, Vigor 2860/2925 prior to v3.9.7, Vigor 2862/2926 prior to v3.9.9.4, Vigor 2133/2762/2832 prior to v3.9.8, Vigor 2135/2765/2766 prior to v4.4.5.1, Vigor 2865/2866/2927 prior to v4.4.5.3, Vigor 2962/3910 prior to v4.3.2.7, Vigor 3912 prior to v4.3.5.2, and Vigor 2925 up to v3.9.6 allows attackers to upload a crafted kernel module, allowing for arbitrary code execution.

This vulnerability is uniquely identified as CVE-2024-41339 since 07/18/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-5950). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• DrayTek

Name

• Vigor 165
• Vigor 166
• Vigor 2133
• Vigor 2135
• Vigor 2620
• Vigor 2762
• Vigor 2765
• Vigor 2766
• Vigor 2832
• Vigor 2860
• Vigor 2862
• Vigor 2865
• Vigor 2866
• Vigor 2925
• Vigor 2925
• Vigor 2926
• Vigor 2927
• Vigor 2962
• Vigor 3910
• Vigor 3912
• Vigor LTE200

License

• commercial

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion