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CVE-2024-51139 Details
Description
Buffer Overflow vulnerability in Vigor2620/LTE200 3.9.8.9 and earlier and Vigor2860/2925 3.9.8 and earlier and Vigor2862/2926 3.9.9.5 and earlier and Vigor2133/2762/2832 3.9.9 and earlier and Vigor165/166 4.2.7 and earlier and Vigor2135/2765/2766 4.4.5.1 and earlier and Vigor2865/2866/2927 4.4.5.3 and earlier and Vigor2962/3910 4.3.2.8/4.4.3.1 and earlier and Vigor3912 4.3.6.1 and earlier allows a remote attacker to execute arbitrary code via the CGI parser's handling of the "Content-Length" header of HTTP POST requests.
A buffer overflow vulnerability has been identified in several DrayTek router models, including the Vigor2620/LTE200, Vigor2860/2925, Vigor2862/2926, Vigor2133/2762/2832, Vigor165/166, Vigor2135/2765/2766, Vigor2865/2866/2927, Vigor2962/3910, and Vigor3912. The vulnerability exists in specific firmware versions, with the affected models and their corresponding vulnerable versions detailed in the advisory. The issue arises in the CGI parser's management of the 'Content-Length' header in HTTP POST requests, enabling remote attackers to execute arbitrary code on the affected devices.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Feb 28, 2025Exploitation: NoneAutomatable: YesTechnical Impact: Total
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://medium.com/faraday/advisory-multiple-vulnerabilities-affecting-draytek-routers-78a6cb8b3946 | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-120 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| draytek vigor2620 firmware | < 3.9.9.1 |
CPE
Remediation
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| draytek vigor2620 | All versions |
CPE
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| draytek vigorlte200 firmware | < 3.9.9.1 |
CPE
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| draytek vigorlte200 | All versions |
CPE
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| draytek vigor2860 firmware | < 3.9.8.3 |
CPE
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| draytek vigor2860 | All versions |
CPE
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| draytek vigor2925 firmware | < 3.9.8.3 |
CPE
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| draytek vigor2925 | All versions |
CPE
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| draytek vigor2862 firmware | < 3.9.9.8 |
CPE
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| draytek vigor2862 | All versions |
CPE
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| draytek vigor2926 firmware | < 3.9.9.8 |
CPE
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| draytek vigor2926 | All versions |
CPE
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| draytek vigor2133 firmware | < 3.9.9.2 |
CPE
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| draytek vigor2133 | All versions |
CPE
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| draytek vigor2762 firmware | < 3.9.9.2 |
CPE
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| draytek vigor2762 | All versions |
CPE
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| draytek vigor2832 firmware | < 3.9.9.2 |
CPE
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| draytek vigor2832 | All versions |
CPE
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| draytek vigor2135 firmware | < 4.4.5.5 |
CPE
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| draytek vigor2135 | All versions |
CPE
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| draytek vigor2765 firmware | < 4.4.5.5 |
CPE
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| draytek vigor2765 | All versions |
CPE
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| draytek vigor2766 firmware | < 4.4.5.5 |
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| draytek vigor2766 | All versions |
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| draytek vigor2763 firmware | < 4.4.5.5 |
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| draytek vigor2763 | All versions |
CPE
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| draytek vigor2865 firmware | < 4.4.5.8 |
CPE
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| draytek vigor2865 | All versions |
CPE
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| draytek vigor2866 firmware | < 4.4.5.8 |
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| draytek vigor2866 | All versions |
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| draytek vigor2927 firmware | < 4.4.5.8 |
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| draytek vigor2927 | All versions |
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| draytek vigor2962 firmware | < 4.3.2.9 >= 4.4.3, < 4.4.3.2 |
CPE
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| draytek vigor2962 | All versions |
CPE
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| draytek vigor3910 firmware | < 4.3.2.9 >= 4.4.3, < 4.4.3.2 |
CPE
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| draytek vigor3910 | All versions |
CPE
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| draytek vigor3912 firmware | < 4.4.3.2 |
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| draytek vigor3912 | All versions |
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| draytek vigor2915 firmware | < 4.4.5 |
CPE
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| draytek vigor2915 | All versions |
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| draytek vigor1000b firmware | < 4.4.3.2 |
CPE
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| draytek vigor1000b | All versions |
CPE
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| draytek vigor2952 firmware | < 3.9.8.5 |
CPE
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| draytek vigor2952 | All versions |
CPE
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| draytek vigor3220 firmware | < 3.9.8.5 |
CPE
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| draytek vigor3220 | All versions |
CPE
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Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 5, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 28, 2025 | Initial Analysis | [email protected] |
| Feb 28, 2025 | CVE Modified | CISA-ADP |
| Feb 27, 2025 | New CVE Received | [email protected] |