cvedb.io
CVE-2021-42911
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2022-03-29T20:15:07.690 · Last modified 2026-06-17T04:10:15.890

Summary

A Format String 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 in the mainfunction.cgi file via a crafted HTTP message containing malformed QUERY STRING, which could let a remote malicious user execute arbitrary code.

Affected products

draytek — vigor2960_firmware

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.