CVE-2020-37119
Critical
Description
Nsauditor 3.0.28 and 3.2.1.0 contains a buffer overflow vulnerability in the DNS Lookup tool that allows attackers to execute arbitrary code by overwriting memory. Attackers can craft a malicious DNS query payload to trigger a three-byte overwrite, bypass ASLR, and execute shellcode through a carefully constructed exploit.
SeverityCritical
CVSS9.8
Exploit probability—
ProductNsasoft Nsauditor
PublishedFeb 5, 2026
First seenFeb 5, 2026
Weakness typeCWE-121CWE-121
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nsasoft nsauditor | 3.0.28, 3.2.1.0 | — |
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