What’s Vulnerable › Vulnerabilities

CVE-2021-47894: Managed Switch Port Mapping Tool 2.85.2 - Denial of Service

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-23 · updated 2026-06-17
• Weakness: CWE-770

Description

Managed Switch Port Mapping Tool 2.85.2 contains a denial of service vulnerability that allows attackers to crash the application by creating an oversized buffer. Attackers can generate a 10,000-character buffer and paste it into the IP Address and SNMP Community Name fields to trigger the application crash.

Affected products

• Northwest Performance Software, Inc. Managed Switch Port Mapping Tool: 2.85.2

References

• https://switchportmapper.com/
• https://switchportmapper.com/download.htm
• https://www.exploit-db.com/exploits/49566
• https://www.vulncheck.com/advisories/managed-switch-port-mapping-tool-denial-of-service
• https://www.exploit-db.com/exploits/49566

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