VULNERABILITY INTELLIGENCE

CVE-2020-37119

CVSS score9.8 CRITICAL

EPSS probability0.70%

CISA KEVNot currently listed

Published2026-02-05

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

disclosure@vulncheck.com: CWE-121
nvd@nist.gov: CWE-787

Primary references

disclosure@vulncheck.com — Exploit, Third Party Advisory, VDB Entry
disclosure@vulncheck.com — Product
disclosure@vulncheck.com — Broken Link