CVE-2021-47894

Managed Switch Port Mapping Tool 2.85.2 - Denial of Service

CVSS 6.7 MEDIUMEPSS 0.3%CWE-770

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.7EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

23 Jan 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected products

Northwest Performance Software, Inc. · Managed Switch Port Mapping Tool

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