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CVE-2024-12987: DrayTek Vigor Routers OS Command Injection Vulnerability

criticalknown exploitedpublic exploitCVE-2024-12987
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
DrayTek Vigor2960, Vigor300B, and Vigor3900 routers contain an OS command injection vulnerability due to an unknown function of the file /cgi-bin/mainfunction.cgi/apmcfgupload of the component web management interface.

CSIRTS triage

vendor: DrayTekproduct: Vigor RoutersCode injectionaffected: Vigor2960, Vigor300B, Vigor3900
What
An OS command injection vulnerability exists in the web management interface of the routers.
Who is affected
Users of the specified DrayTek Vigor routers with the vulnerable firmware.
Urgency
Remediation is critical as the vulnerability is actively exploited and classified as critical.
Action
Update the firmware of the affected Vigor routers to the latest version.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2025-05-15
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2024-12987

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2024-12987coverage & exploitation statusNVD · CVE.org

Recent advisories for DrayTek Vigor Routers

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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