Critical severity9.8NVD Advisory· Published Mar 29, 2022· Updated Jun 17, 2026
CVE-2021-43118
CVE-2021-43118
Description
A Remote Command Injection 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 via a crafted HTTP message containing malformed QUERY STRING in mainfunction.cgi, which could let a remote malicious user execute arbitrary code.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7- cpe:2.3:o:draytek:vigor2960_firmware:1.5.1.3:*:*:*:*:*:*:*
- cpe:2.3:o:draytek:vigor300b_firmware:1.5.1.3:*:*:*:*:*:*:*
- cpe:2.3:o:draytek:vigor3900_firmware:1.5.1.3:*:*:*:*:*:*:*
(expand)+ 1 more
- (no CPE)
- (no CPE)range: 1.5.1.3
- Range: 1.5.1.3
Patches
Vulnerability mechanics
References
1- gist.github.com/Cossack9989/6034c077f46e4f06d0992e9f2fae7f26nvdExploitThird Party Advisory
News mentions
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