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:PCVE-2026-3040
Low (2.0) in draytek vigor300b firmware. EPSS 10% chance of exploitation in the next 30 days.
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.
Severity
CVSS 3.1
7.2 highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H- EPSS
- 10% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-78, CWE-77
- Published
- Modified
- Record from
- the NVD, synced
Affected
- draytek:vigor300b_firmware