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CVE-2020-37196 Nsasoft CVE debrief

CVE-2020-37196 is a denial of service vulnerability in Dnss Domain Name Search Software. An attacker can crash the application by providing an oversized registration key. A 1000-character buffer payload can be generated and pasted into the registration key field to trigger an application crash. This vulnerability has a CVSS score of 4.6 and a severity of MEDIUM. The CVE was published on 2026-02-11T21:16:14.127Z and last modified on 2026-06-29T18:29:43.417Z.

Vendor
Nsasoft
Product
Domain Name Search Software
CVSS
MEDIUM 4.6
CISA KEV
Not listed in stored evidence
Original CVE published
2026-02-11
Original CVE updated
2026-06-29
Advisory published
2026-02-11
Advisory updated
2026-06-29

Who should care

Security teams and administrators responsible for Dnss Domain Name Search Software should be aware of this vulnerability. They should assess their exposure and apply necessary mitigations to prevent denial of service attacks. This vulnerability can be exploited by attackers to crash the application, potentially disrupting service.

Technical summary

CVE-2020-37196 is a denial of service vulnerability in Dnss Domain Name Search Software. The vulnerability allows an attacker to crash the application by providing an oversized registration key. A 1000-character buffer payload can be used to trigger the crash. The vulnerability has a CVSS score of 4.6 and a severity of MEDIUM. The CVSS vector is CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/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:X/V:X/RE:X/U:X.

Defensive priority

Apply patches or updates provided by the vendor to fix the vulnerability. Limit access to the registration key field to prevent unauthorized modifications.

Recommended defensive actions

  • Apply patches or updates provided by Nsasoft to fix the vulnerability.
  • Limit access to the registration key field to prevent unauthorized modifications.
  • Monitor the application for unusual activity, such as repeated crashes.
  • Consider implementing additional security controls, such as input validation and error handling.
  • Review and update incident response plans to address potential denial of service attacks.

Evidence notes

The CVE-2020-37196 vulnerability was published on 2026-02-11T21:16:14.127Z and last modified on 2026-06-29T18:29:43.417Z. The vulnerability has a CVSS score of 4.6 and a severity of MEDIUM. The CVSS vector is CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/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:X/V:X/RE:X/U:X.

Sources and references

Verified primary and authoritative sources

  • CVE-2020-37196 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2020-37196

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2020-37196 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2020-37196

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.