{"id":"CVE-2018-3986","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-3986","generatedAt":"2026-10-29T03:57:54.101Z","title":"An exploitable information disclosure vulnerability exists in the \"Secret Chats\" functionality of the Telegram Android messaging application version 4.9.0.","description":"An exploitable information disclosure vulnerability exists in the \"Secret Chats\" functionality of the Telegram Android messaging application version 4.9.0. The \"Secret Chats\" functionality allows a user to delete all traces of a chat, either by using a time trigger or by direct request. There is a bug in this functionality that leaves behind photos taken and shared on the secret chats, even after the chats are deleted. These photos will be stored in the device and accessible to all applications installed on the Android device.","published":"2019-01-03T22:29:00.000Z","lastModified":"2026-06-17T01:58:10.000Z","status":"Modified","sourceIdentifier":"talos-cna@cisco.com","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-200"],"affected":["telegram/telegram"],"epss":{"score":0.00428,"percentile":0.36978,"date":"2026-10-28","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.43%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/106295","tags":["Broken Link","Third Party Advisory","VDB Entry"],"source":"talos-cna@cisco.com"},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0654","tags":["Exploit","Third Party Advisory"],"source":"talos-cna@cisco.com"},{"url":"http://www.securityfocus.com/bid/106295","tags":["Broken Link","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0654","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-3986","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."}