High 7.5Published Jan 23, 2026

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

Updated under an hour ago (Oct 27, 2026, 11:00 AM ET)

Does this affect you?

It affects Northwest Performance Software, Inc. Managed Switch Port Mapping Tool. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Northwest Performance Software, Inc. Managed Switch Port Mapping Tool

Exploited in the last 30 days

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: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Jul 27, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Northwest Performance Software, Inc. Managed Switch Port Mapping Tool northwest_performance_software:managed_switch_port_mapping_tool (from the name)	2.85.2	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.