CVE-2020-37196

HIGH

Dnss Domain Name Search Software - Denial of Service via Oversized Registration Key

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-37196. PoCs published by Ismail Tasdelen.

AI-analyzed exploit summary This PoC demonstrates a denial-of-service (DoS) vulnerability in Dnss Domain Name Search Software by overflowing the 'Key' field during registration with a 1000-byte buffer of 'A' characters, causing the application to crash.

Description

Dnss Domain Name Search Software contains a denial of service vulnerability that allows attackers to crash the application by providing an oversized registration key. Attackers can generate a 1000-character buffer payload and paste it into the registration key field to trigger an application crash.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Ismail Tasdelen · pythondoswindows
https://www.exploit-db.com/exploits/47856

This PoC demonstrates a denial-of-service (DoS) vulnerability in Dnss Domain Name Search Software by overflowing the 'Key' field during registration with a 1000-byte buffer of 'A' characters, causing the application to crash.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Dnss Domain Name Search Software (version unspecified)
No auth needed
Prerequisites: Dnss Domain Name Search Software installed · Access to the registration interface
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/47856
Various Sources product
http://www.nsauditor.com/

Scores

CVSS v3 7.5
EPSS 0.0052
EPSS Percentile 40.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (1)
nsasoft/domain_name_search_software
Published Feb 11, 2026
Tracked Since Feb 18, 2026