Vigor165/166 4.2.7 and earlier; Vigor2620/LTE200 3.9.8.9 and earlier; Vigor2860/2925 3.9.8 and earlier; Vigor2862/2926 3.9.9.5 and earlier; Vigor2133/2762/2832 3.9.9 and earlier; Vigor2135/2765/2766 4.4.5. and earlier; Vigor2865/2866/2927 4.4.5.3 and earlier; Vigor2962 4.3.2.8 and earlier; Vigor3912 4.3.6.1 and earlier; Vigor3910 4.4.3.1 and earlier a stack-based buffer overflow vulnerability has been identified in the URL parsing functionality of the TR069 STUN server. This flaw occurs due to insufficient bounds checking on the amount of URL parameters, allowing an attacker to exploit the overflow by sending a maliciously crafted request. Consequently, a remote attacker can execute arbitrary code with elevated privileges.
Conclusion & alert: CVE-2024-51138 is rated High Risk (66.6/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 4.65%). Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-03 | 8.59% | 4.65% | -3.94% |
| 2 | 2026-05-27 | 7.00% | 8.59% | +1.58% |
| 3 | 2026-04-08 | — | 7.00% | — |
Full EPSS history (17 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| draytek | vigor3912_firmware | < 4.4.3.2 | cpe:2.3:o:draytek:vigor3912_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2620_firmware | < 3.9.9.1 | cpe:2.3:o:draytek:vigor2620_firmware:*:*:*:*:*:*:*:* |
| draytek | vigorlte200_firmware | < 3.9.9.1 | cpe:2.3:o:draytek:vigorlte200_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2860_firmware | < 3.9.8.3 | cpe:2.3:o:draytek:vigor2860_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2925_firmware | < 3.9.8.3 | cpe:2.3:o:draytek:vigor2925_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2862_firmware | < 3.9.9.8 | cpe:2.3:o:draytek:vigor2862_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2926_firmware | < 3.9.9.8 | cpe:2.3:o:draytek:vigor2926_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2133_firmware | < 3.9.9.2 | cpe:2.3:o:draytek:vigor2133_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2762_firmware | < 3.9.9.2 | cpe:2.3:o:draytek:vigor2762_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2832_firmware | < 3.9.9.2 | cpe:2.3:o:draytek:vigor2832_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2135_firmware | < 4.4.5.5 | cpe:2.3:o:draytek:vigor2135_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2765_firmware | < 4.4.5.5 | cpe:2.3:o:draytek:vigor2765_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2766_firmware | < 4.4.5.5 | cpe:2.3:o:draytek:vigor2766_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2763_firmware | < 4.4.5.5 | cpe:2.3:o:draytek:vigor2763_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2865_firmware | < 4.4.5.8 | cpe:2.3:o:draytek:vigor2865_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2866_firmware | < 4.4.5.8 | cpe:2.3:o:draytek:vigor2866_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2927_firmware | < 4.4.5.8 | cpe:2.3:o:draytek:vigor2927_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2962_firmware | < 4.3.2.9 | cpe:2.3:o:draytek:vigor2962_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2962_firmware | >= 4.4.3, < 4.4.3.2 | cpe:2.3:o:draytek:vigor2962_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor3910_firmware | < 4.3.2.9 | cpe:2.3:o:draytek:vigor3910_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor3910_firmware | >= 4.4.3, < 4.4.3.2 | cpe:2.3:o:draytek:vigor3910_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2915_firmware | < 4.4.5 | cpe:2.3:o:draytek:vigor2915_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor1000b_firmware | < 4.4.3.2 | cpe:2.3:o:draytek:vigor1000b_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor2952_firmware | < 3.9.8.5 | cpe:2.3:o:draytek:vigor2952_firmware:*:*:*:*:*:*:*:* |
| draytek | vigor3220_firmware | < 3.9.8.5 | cpe:2.3:o:draytek:vigor3220_firmware:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://draytek.com | Product |
| https://medium.com/faraday/advisory-multiple-vulnerabilities-affecting-draytek-routers-78a6cb8b3946 | Third Party Advisory |