CVE-2026-3040
low-risk
Published 2026-02-23
A vulnerability was identified in DrayTek Vigor 300B up to 1.5.1.6. This affects the function cgiGetFile of the file /cgi-bin/mainfunction.cgi/uploadlangs of the component Web Management Interface. The manipulation of the argument File leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor confirms that "300B is EoL, and this is an authenticated vulnerability. We don't plan to fix it." This vulnerability only affects products that are no longer supported by the maintainer.
Do I need to act?
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0.43% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10
Medium
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (4)
Permissions Required
https://vuldb.com/?ctiid.347394
Third Party Advisory
https://vuldb.com/?id.347394
Third Party Advisory
https://vuldb.com/?submit.757126
26
/ 100
low-risk
Severity
19/34 · Moderate
Exploitability
2/34 · Minimal
Exposure
5/34 · Minimal