{"id":"CVE-2026-3502","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-3502","generatedAt":"2026-10-31T05:59:06.342Z","title":"TrueConf Client Download of Code Without Integrity Check Vulnerability","description":"TrueConf Client downloads application update code and applies it without performing verification. An attacker who is able to influence the update delivery path can substitute a tampered update payload. If the payload is executed or installed by the updater, this may result in arbitrary code execution in the context of the updating process or user.","published":"2026-03-30T19:16:27.000Z","lastModified":"2026-06-17T10:43:41.000Z","status":"Analyzed","sourceIdentifier":"cve@checkpoint.com","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L"},"cwe":["CWE-494"],"affected":["trueconf/trueconf"],"epss":{"score":0.05845,"percentile":0.93164,"date":"2026-10-30","history":[{"date":"2026-09-24","score":0.00329,"percentile":0.23215},{"date":"2026-10-25","score":0.05577,"percentile":0.92822}]},"kev":{"listed":true,"dateAdded":"2026-04-02","dueDate":"2026-04-16","knownRansomwareCampaignUse":"Unknown","notes":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.\nhttps://trueconf.com/blog/update/trueconf-8-5 ; https://trueconf.com/downloads/windows.html ; https://nvd.nist.gov/vuln/detail/CVE-2026-3502"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 16 April 2026). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-10-25T00:00:00.000Z","detail":{"to":0.05577,"from":0.00329,"percentile":0.92822},"summary":"EPSS moved from 0.3% to 5.6% probability of exploitation in the next thirty days."}],"references":[{"url":"https://trueconf.com/blog/update/trueconf-8-5","tags":["Product","Release Notes"],"source":"cve@checkpoint.com"},{"url":"https://research.checkpoint.com/2026/operation-truechaos-0-day-exploitation-against-southeast-asian-government-targets/","tags":["Third Party Advisory"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-3502","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-3502","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."}