CVE-2019-25340— SpotAuditor 5.3.2 - 'Base64' Denial Of Service
Quick assessment
Affected
Nsasoft Nsauditor SpotAuditor
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 SpotAuditor是美国Nsasoft公司的一种高级密码恢复软件。用于恢复超过 40 种流行的 Windows 程序和工具丢失或忘记的密码。 Nsasoft SpotAuditor 5.3.2版本存在安全漏洞，该漏洞源于Base64解密功能存在拒绝服务漏洞，可能导致攻击者通过提供过大的缓冲区使应用程序崩溃。
Possible ATT&CK Techniques 1 AI
T1496 · Resource Hijacking
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I. Basic Information for CVE-2019-25340
Vulnerability Information
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Vulnerability Title
SpotAuditor 5.3.2 - 'Base64' Denial Of Service
Source: CVE Program / CVE List V5
Vulnerability Description
SpotAuditor 5.3.2 contains a denial of service vulnerability in its Base64 decryption feature that allows attackers to crash the application by supplying an oversized buffer. Attackers can generate a malformed input file with 2000 repeated characters to trigger an application crash when pasted into the Base64 Encrypted Password field.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Nsasoft SpotAuditor 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nsasoft SpotAuditor是美国Nsasoft公司的一种高级密码恢复软件。用于恢复超过 40 种流行的 Windows 程序和工具丢失或忘记的密码。 Nsasoft SpotAuditor 5.3.2版本存在安全漏洞，该漏洞源于Base64解密功能存在拒绝服务漏洞，可能导致攻击者通过提供过大的缓冲区使应用程序崩溃。
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 |
|---|---|---|---|---|
| Nsasoft | Nsauditor SpotAuditor | 5.3.2 | - |
|
II. Public POCs for CVE-2019-25340
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Nsasoft · 2026-02-12 · 3 CVEs total
| CVE-2019-25336 | 8.4 HIGH | SpotAuditor 5.3.2 - 'Base64' Local Buffer Overflow (SEH) |
| CVE-2019-25334 | 6.2 MEDIUM | Product Key Explorer 4.2.0.0 - 'Name' Denial of Service |
IV. Related Vulnerabilities
Same vendor: Nsasoft
-
CVE-2019-25434
SpotAuditor 5.3.1.0 Denial of Service via Registration Name -
CVE-2019-25336
SpotAuditor 5.3.2 - 'Base64' Local Buffer Overflow (SEH) -
CVE-2019-25334
Product Key Explorer 4.2.0.0 - 'Name' Denial of Service -
CVE-2020-37212
SpotMSN 2.4.6 - 'Name' Denial of Service -
CVE-2020-37211
SpotIM 2.2 - 'Name' Denial Of Service
Same weakness: CWE-121
-
CVE-2026-104115
Stack buffer overflow in illumos reparsed nfs-basic plugin a -
CVE-2026-7827
Stack-based buffer overflow in FalkorDB _RdbLoadEntity via u -
CVE-2026-107736
SumatraPDF: stack buffer overflow while processing EXIF Orie -
CVE-2026-105673
Unauthenticated RTSP Tunnel Denial-of-Service Vulnerability -
CVE-2026-84035
Multiple vulnerabilities affect the Sniffer component as par
V. Comments for CVE-2019-25340
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