CVE-2019-25591— DNSS Domain Name Search Software 2.1.8 Denial of Service
Quick assessment
Affected
nsauditor DNSS Domain Name Search Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Nsasoft Dnss Domain Name Search Software是美国Nsasoft公司的一款域名查询与分析工具。 Nsasoft Dnss Domain Name Search Software 2.1.8版本存在缓冲区错误漏洞，该漏洞源于注册码输入字段存在缓冲区溢出，可能导致本地攻击者通过提交超长字符串使应用程序崩溃。
Possible ATT&CK Techniques 2 AI
T1203 · Exploitation for Client Execution T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2019-25591
Vulnerability Information
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Vulnerability Title
DNSS Domain Name Search Software 2.1.8 Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Nsasoft Dnss Domain Name Search Software 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nsasoft Dnss Domain Name Search Software是美国Nsasoft公司的一款域名查询与分析工具。 Nsasoft Dnss Domain Name Search Software 2.1.8版本存在缓冲区错误漏洞，该漏洞源于注册码输入字段存在缓冲区溢出，可能导致本地攻击者通过提交超长字符串使应用程序崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| nsauditor | DNSS Domain Name Search Software | 2.1.8 | - |
|
II. Public POCs for CVE-2019-25591
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2019-25591 (1)
-
DNSS Domain Name Search Software 2.1.8 Denial of Service | Advisories | VulnCheck third-party-advisory
Exploits & Public PoCs for CVE-2019-25591 (1)
Other References for CVE-2019-25591 (1)
Same Patch Batch · nsauditor · 2026-03-22 · 4 CVEs total
| CVE-2019-25596 | 6.2 MEDIUM | SpotAuditor 5.2.6 Name Field Denial of Service |
| CVE-2019-25599 | 6.2 MEDIUM | Backup Key Recovery 2.2.4 Denial of Service via Name Field |
| CVE-2019-25597 | 6.2 MEDIUM | NSauditor 3.1.2.0 Denial of Service via Community Field |
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V. Comments for CVE-2019-25591
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