CVE-2024-51139

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.

Published: 2025-02-27 Last update: 2025-05-28 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-51139 is rated High Risk (66.9/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 3.61%). 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.

Exploit prediction scoring system (EPSS) score for CVE-2024-51139

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 6.75% 3.61% -3.14%
2 2026-05-27 5.48% 6.75% +1.27%
3 2026-04-08 — 5.48% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-51139

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-51139

Affected software / configurations for CVE-2024-51139

Vendor Product Version Raw CPE
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 vigor3912_firmware < 4.4.3.2 cpe:2.3:o:draytek:vigor3912_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:*:*:*:*:*:*:*:*

References for CVE-2024-51139

cvelogic Threat Intelligence