{"id":"CVE-2021-44023","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-44023","generatedAt":"2026-10-27T20:54:23.915Z","title":"A link following denial-of-service (DoS) vulnerability in the Trend Micro Security (Consumer) 2021 familiy of products could allow an attacker to abuse the PC Health Checkup feature of the product to create symlinks that would allow modification of…","description":"A link following denial-of-service (DoS) vulnerability in the Trend Micro Security (Consumer) 2021 familiy of products could allow an attacker to abuse the PC Health Checkup feature of the product to create symlinks that would allow modification of files which could lead to a denial-of-service.","published":"2021-12-16T03:15:10.000Z","lastModified":"2026-06-17T04:11:48.000Z","status":"Modified","sourceIdentifier":"security@trendmicro.com","cvss":{"version":"3.1","score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"},"cwe":["CWE-59"],"affected":["trendmicro/antivirus\\+ security 2021","trendmicro/internet security 2021","trendmicro/maximum security 2021","trendmicro/premium security 2021"],"epss":{"score":0.00422,"percentile":0.36243,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://helpcenter.trendmicro.com/en-us/article/tmka-10867","tags":["Vendor Advisory"],"source":"security@trendmicro.com"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-1536/","tags":["Third Party Advisory","VDB Entry"],"source":"security@trendmicro.com"},{"url":"https://helpcenter.trendmicro.com/en-us/article/tmka-10867","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-1536/","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-44023","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}