CVE-2021-47894

HIGH

Managed Switch Port Mapping Tool <2.85.2 - DoS

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-47894. PoCs published by Ismael Nava.

AI-analyzed exploit summary This exploit demonstrates a Denial of Service (DoS) vulnerability in Managed Switch Port Mapping Tool 2.85.2 by flooding the IP Address and SNMP v1/v2c Read Community Name fields with a large buffer of characters. The PoC generates a file containing the buffer, which when pasted into the application, triggers the DoS.

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.

Exploits (1)

exploitdb WORKING POC
by Ismael Nava · textdoswindows
https://www.exploit-db.com/exploits/49566

This exploit demonstrates a Denial of Service (DoS) vulnerability in Managed Switch Port Mapping Tool 2.85.2 by flooding the IP Address and SNMP v1/v2c Read Community Name fields with a large buffer of characters. The PoC generates a file containing the buffer, which when pasted into the application, triggers the DoS.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Managed Switch Port Mapping Tool 2.85.2
No auth needed
Prerequisites: Access to the application's settings interface
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/49566
Various Sources product
https://switchportmapper.com/

Scores

CVSS v3 7.5
EPSS 0.0025
EPSS Percentile 16.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-770
Status published
Published Jan 23, 2026
Tracked Since Feb 18, 2026