CVE-2026-3040
A vulnerability was identified in DrayTek Vigor 300B up to 1.5.1.6.
Does this matter?
Lower severity and a low EPSS score (8.78%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 4.0
- 2.0 LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 8.78% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-77, CWE-78
- Affected
- draytek/vigor300b firmware
- Source
- cna@vuldb.com
References
- https://github.com/master-abc/cve/issues/42Exploit, Issue Tracking
- https://vuldb.com/?ctiid.347394Permissions Required, Third Party Advisory, VDB Entry
- https://vuldb.com/?id.347394Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.757126Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.