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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2024-12987

DrayTek Vigor Routers OS Command Injection Vulnerability

KEVMEDIUM 6.9EPSS 98.1%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 5 June 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

A vulnerability, which was classified as critical, was found in DrayTek Vigor2960 and Vigor300B 1.5.1.4. Affected is an unknown function of the file /cgi-bin/mainfunction.cgi/apmcfgupload of the component Web Management Interface. The manipulation of the argument session leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.5.1.5 is able to address this issue. It is recommended to upgrade the affected component.

CVSS 4.0
6.9 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
98.08% probability · 100th percentile
CISA KEV
Listed 15 May 2025 · due 5 June 2025
Weakness
CWE-77, CWE-78
Affected
draytek/vigor300b firmware · draytek/vigor2960 firmware
Source
cna@vuldb.com

CISA notes

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://fw.draytek.com.tw/Vigor2960/Firmware/v1.5.1.5/DrayTek_Vigor2960_V1.5.1.5_01release-note.pdf ; https://fw.draytek.com.tw/Vigor300B/Firmware/v1.5.1.5/DrayTek_Vigor300B_V1.5.1.5_01release-note.pdf ; https://fw.draytek.com.tw/Vigor3900/Firmware/v1.5.1.5/DrayTek_Vigor3900_V1.5.1.5_01release-note.pdf ; https://nvd.nist.gov/vuln/detail/CVE-2024-12987

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.