Security readout for executives and security teams
Plain-English summary
CVE-2021-47894 is a denial-of-service issue in Managed Switch Port Mapping Tool 2.85.2. Malformed oversized input in specific application fields can crash the tool. The business impact is likely disruption to staff using this utility for switch mapping, not direct compromise of network devices based on the provided sources.
Executive priority
Treat as a targeted operational-risk issue. It can interrupt network management workflows but provided evidence does not indicate system compromise or active exploitation. Address during near-term vulnerability hygiene, especially on network administration workstations.
Technical view
The vulnerability is reported as CWE-770 in Northwest Performance Software Managed Switch Port Mapping Tool 2.85.2. Oversized input to the IP Address and SNMP Community Name fields can create a buffer condition that crashes the application. The CVSS 3.1 score is 7.5, availability-only impact. Source details are limited and somewhat UI-oriented despite the network CVSS vector.
Likely exposure
Exposure is limited to environments that have Managed Switch Port Mapping Tool version 2.85.2 installed. The sources do not identify other affected versions. Prioritize checking administrator workstations, network operations jump boxes, and software inventories where this tool may be used.
Exploitation context
A public ExploitDB entry exists, so proof-of-concept information is publicly available. The provided sources do not show CISA KEV listing or confirmed active exploitation. The described impact is application crash, not data theft, privilege escalation, or device takeover.
Researcher notes
The record cites ExploitDB and VulnCheck, but source detail is sparse. The description implies UI field input, while the CVSS vector lists network attack complexity and no user interaction. Validate assumptions against vendor material before broad risk scoring or detection engineering.
Mitigation direction
- Identify any installations of Managed Switch Port Mapping Tool 2.85.2.
- Check the vendor site for updated versions or official remediation guidance.
- Restrict use of the tool to trusted administrators and controlled workstations.
- Avoid processing untrusted or externally supplied input in the affected fields.
- Remove the tool where it is no longer operationally required.
Validation and detection
- Inventory endpoints for Managed Switch Port Mapping Tool installations.
- Confirm installed version numbers, focusing on version 2.85.2.
- Review vendor download and advisory pages for newer guidance.
- Check helpdesk or endpoint logs for unexpected application crashes.
- Document compensating controls if no vendor fix is available.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-770: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-47894 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-49566CVE reference · exploit
- Vendor HomepageCVE reference · product
- Software Download PageCVE reference · product
- VulnCheck Advisory: Managed Switch Port Mapping Tool 2.85.2 - Denial of ServiceCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Allocation of Resources Without Limits or Throttling
Allocation of Resources Without Limits or Throttling represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.