CVE-2024-43027

Name: CVE-2024-43027
Creator: NVD / NIST
Published: 2024-08-21T16:15:08.297+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8/10EPSS 1.30%

Last modified Jun 17, 2026

CVE-2024-43027 is a high-severity vulnerability rated 8/10 on the CVSS scale. 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.. EPSS estimates a 1.30% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8/10

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.30%

66.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-77

Affected Software

Vendor	Product	Versions
Draytek	Vigor300b Firmware	< 1.5.1.5
Draytek	Vigor2960 Firmware	< 1.5.1.5
Draytek	Vigor3900 Firmware	< 1.5.1.5

References

https://github.com/N1nEmAn/wp/blob/main/V3900.mdExploit, Third Party Advisory

Timeline

Published: Aug 21, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-43027?

How severe is CVE-2024-43027?

CVE-2024-43027 has a CVSS score of 8/10 (HIGH severity). The EPSS model estimates a 1.30% probability of exploitation in the next 30 days.

How do I fix CVE-2024-43027?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-43027?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST