Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD 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.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
NONE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
1 version affected across 2 products
CVE-2026-3040 DrayTek Vigor 300B Web Management Interface OS Command Injection Vulnerability https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-3040
Post summary
A new OS command injection vulnerability (CVE-2026-3040) affecting the DrayTek Vigor 300B Web Management Interface has been disclosed, with details available via the provided link.
CVE-2026-3040 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 compon… https://www.cve.org/CVERecord?id=CVE-2026-3040
Post summary
A vulnerability (CVE-2026-3040) was identified in DrayTek Vigor 300B firmware up to 1.5.1.6, affecting the cgiGetFile function in /cgi-bin/mainfunction.cgi/uploadlangs.
2 of 2 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| HW | draytek | vigor300b | - | - | - |
| OS | draytek | vigor300b_firmware | - | - | - |