Vulnerability Intelligence Report
CVE-2021-43118
A Remote Command Injection vulnerability exists in DrayTek Vigor 2960 1.5.1.3, DrayTek Vigor 3900 1.5.1.3, and DrayTek Vigor 300B 1.5.1.3 via a crafted HTTP message containing malformed QUERY STRING in mainfunction.cgi, which could let a remote malicious user execute arbitrary code.
No Active Exploit Signals
CVSS Base Score
9.8
CRITICAL
EPSS Probability:34.84%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| draytek | vigor2960_firmware | 1.5.1.3 |
| draytek | vigor2960 | all |
| draytek | vigor3900_firmware | 1.5.1.3 |
| draytek | vigor3900 | all |
| draytek | vigor300b_firmware | 1.5.1.3 |
| draytek | vigor300b | all |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
34.845%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2021-11-01T00:00:00 |
| Published | 2022-03-29T19:37:57 |
| Last Updated | 2024-08-04T03:47:13 |
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