← Vulnerability feed

Vulnerability record · CVE-2020-37119 · published 5 February 2026

CVE-2020-37119: Nsasoft nsauditor stack-based buffer overflow vulnerability

Nsasoft · Nsauditor

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.

8.4 CVSS 4.0 High EPSS 0.65% · top 51.2% CWE-121 · Stack-based buffer overflowCWE-787 · Out-of-bounds write
8.4CVSS 4.0 base score
0.65%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 1 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.exploit-db.com/exploits/48350 ExploitThird Party AdvisoryVDB Entry
https://www.nsauditor.com/ Product
https://www.vulncheck.com/advisories/nsauditor-buffer-overflow-sehaslr-bypass-bytes-overwrite Broken Link

Track CVE-2020-37119 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.6CVE-2018-25213Nsasoft nsauditor out-of-bounds write vulnerabilityNsauditor 3.0.28.0 contains a structured exception handling buffer overflow vulnerability that allows local attackers to execute arbitrary code by su…EPSS 0.25%6.9CVE-2019-25597Nsasoft nsauditor out-of-bounds write vulnerabilityNSauditor 3.1.2.0 contains a buffer overflow vulnerability in the SNMP Auditor Community field that allows local attackers to crash the application b…EPSS 0.24%6.7CVE-2020-37130Nsasoft nsauditor classic buffer overflow vulnerabilityNsauditor 3.2.0.0 contains a denial of service vulnerability in the registration name input field that allows attackers to crash the application. Att…EPSS 0.48%6.7CVE-2021-47895Nsasoft nsauditor allocation without limits vulnerabilityNsauditor 3.2.2.0 contains a denial of service vulnerability that allows attackers to crash the application by overwriting the Event Description fiel…EPSS 0.35%6.7CVE-2021-47815Nsasoft nsauditor classic buffer overflow vulnerabilityNsauditor 3.2.3 contains a denial of service vulnerability in the registration code input field that allows attackers to crash the application. Attac…EPSS 0.49%8.8CVE-2026-7273Zyxel gs1900-8 firmware stack-based buffer overflow vulnerabilityA stack-based buffer overflow vulnerability in the CGI program of Zyxel GS1900-48HPv2 firmware versions through 2.90(ABTQ.1)C0 could allow a LAN-base…KEVEPSS 2.5%8.1CVE-2021-27137DD-WRT UPnP M-SEARCH stack buffer overflowDD-WRT before 45724 contains an unsafe strcpy in the UPnP SSDP handling code (ssdp_msearch), reachable via an M-SEARCH request, that overflows a fixe…KEVEPSS 4.0%analysed9.3CVE-2025-53521F5 BIG-IP APM stack buffer overflow allows remote code executionA stack-based buffer overflow (CWE-121) exists in F5 BIG-IP Access Policy Manager when an APM access policy is configured on a virtual server. Specif…KEVEPSS 2.3%analysed

Source: NIST National Vulnerability Database (record CVE-2020-37119), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.