{"id":"CVE-2021-27197","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-27197","generatedAt":"2026-10-27T22:33:47.124Z","title":"DSUtility.dll in Pelco Digital Sentry Server before 7.19.67 has an arbitrary file write vulnerability.","description":"DSUtility.dll in Pelco Digital Sentry Server before 7.19.67 has an arbitrary file write vulnerability. The AppendToTextFile method doesn't check if it's being called from the application or from a malicious user. The vulnerability is triggered when a remote attacker crafts an HTML page (e.g., with \"OBJECT classid=\" and \"<SCRIPT language='vbscript'>\") to overwrite arbitrary files.","published":"2021-02-12T16:15:13.000Z","lastModified":"2026-06-17T03:44:27.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H"},"cwe":["CWE-346"],"affected":["pelco/digital sentry server"],"epss":{"score":0.0079,"percentile":0.55999,"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 (0.79%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/vitorespf/Advisories/blob/master/Pelco_Digital_Sentry_Server_AFW.txt","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://support.pelco.com/s/article/What-is-the-Digital-Sentry-software-release-revision-history","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/vitorespf/Advisories/blob/master/Pelco_Digital_Sentry_Server_AFW.txt","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.pelco.com/s/article/What-is-the-Digital-Sentry-software-release-revision-history","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-27197","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."}