CVE-2024-43027

Exp

DrayTek Vigor 3900 before v1.5.1.5_Beta, DrayTek Vigor 2960 before v1.5.1.5_Beta and DrayTek Vigor 300B before v1.5.1.5_Beta were discovered to contain a command injection vulnerability via the action parameter at cgi-bin/mainfunction.cgi.

Published: 2024-08-21 Last update: 2025-06-03 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-43027 is rated High Exploit Risk (70.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.30%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2024-43027

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2024-43027

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 2026-06-15 0.70% 1.30% +0.60%
2 2026-01-10 0.51% 0.70% +0.18%
3 2025-11-21 — 0.51% —

Full EPSS history (21 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-43027

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.0 3.1 HIGH
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
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:L)
A normal user session is enough; they don’t have to be admin.
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.
 2.1 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-43027

Affected software / configurations for CVE-2024-43027

Vendor Product Version Raw CPE
draytek vigor300b_firmware < 1.5.1.5 cpe:2.3:o:draytek:vigor300b_firmware:*:*:*:*:*:*:*:*
draytek vigor2960_firmware < 1.5.1.5 cpe:2.3:o:draytek:vigor2960_firmware:*:*:*:*:*:*:*:*
draytek vigor3900_firmware < 1.5.1.5 cpe:2.3:o:draytek:vigor3900_firmware:*:*:*:*:*:*:*:*

References for CVE-2024-43027

URL Tags
https://github.com/N1nEmAn/wp/blob/main/V3900.md Exploit Third Party Advisory
cvelogic Threat Intelligence