{"id":"CVE-2021-27665","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-27665","generatedAt":"2026-10-27T23:29:21.352Z","title":"An unauthenticated remote user could exploit a potential integer overflow condition in the exacqVision Server with a specially crafted script and cause denial-of-service condition.","description":"An unauthenticated remote user could exploit a potential integer overflow condition in the exacqVision Server with a specially crafted script and cause denial-of-service condition.","published":"2021-10-11T16:15:08.000Z","lastModified":"2026-06-17T03:45:19.000Z","status":"Modified","sourceIdentifier":"productsecurity@jci.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-190"],"affected":["johnsoncontrols/exacqvision server"],"epss":{"score":0.01573,"percentile":0.75239,"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 (1.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://us-cert.gov/ics/advisories/icsa-21-280-03","tags":["Mitigation","Third Party Advisory","US Government Resource"],"source":"productsecurity@jci.com"},{"url":"https://www.johnsoncontrols.com/cyber-solutions/security-advisories","tags":["Vendor Advisory"],"source":"productsecurity@jci.com"},{"url":"https://us-cert.gov/ics/advisories/icsa-21-280-03","tags":["Mitigation","Third Party Advisory","US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.johnsoncontrols.com/cyber-solutions/security-advisories","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-27665","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."}