{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47894 exists.","fix":"No fix has been published for CVE-2021-47894 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-47894 is a medium-severity denial of service vulnerability in Northwest Performance Software, Inc. Managed Switch Port Mapping Tool, published on 23 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-47894 and fix it if it is affected.\n\nWhat it is: CVE-2021-47894 is a medium-severity denial of service vulnerability in Northwest Performance Software, Inc. Managed Switch Port Mapping Tool, published on 23 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47894 exists.\n\nAffected product: Northwest Performance Software, Inc. Managed Switch Port Mapping Tool. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2021-47894/ (Markdown: https://insights.sbomify.com/CVE-2021-47894/index.md)","id":"CVE-2021-47894","markdown":"https://insights.sbomify.com/CVE-2021-47894/index.md","name":"CVE-2021-47894","record":{"aliases":["GHSA-52gx-mj6q-xrjv"],"analysis":{"component_type":"desktop_application","fix_type":"no_fix_stated","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Network management tool","requires_auth":"none","summary":"Attackers can crash the Managed Switch Port Mapping Tool by inputting oversized buffers into specific fields, causing a denial of service.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":6.7,"severity":"medium","source":"cna","vector":"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","version":"4.0"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Managed Switch Port Mapping Tool 2.85.2 - Denial of Service","id":"CVE-2021-47894","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":4,"next":{"headline":"Nsauditor 3.2.2.0 - 'Event Description' Denial of Service","id":"CVE-2021-47895"},"packages":[],"prev":{"headline":"AgataSoft PingMaster Pro 2.1 - Denial of Service","id":"CVE-2021-47893"},"products":["Managed Switch Port Mapping Tool"],"published":"2026-01-23","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-28","vendors":["Northwest Performance Software, Inc."]},"summary":"Attackers can crash the Managed Switch Port Mapping Tool by inputting oversized buffers into specific fields, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2021-47894/"}