{"id":"CVE-2026-103678","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-103678","generatedAt":"2026-10-28T03:41:44.223Z","title":"An attacker can exploit this vulnerability by providing a specially crafted file containing uncompressed Rich Text Format (RTF) data.","description":"A flaw was found in tnef. An attacker can exploit this vulnerability by providing a specially crafted file containing uncompressed Rich Text Format (RTF) data. Because the application fails to properly validate input buffer boundaries before copying data in get_rtf_data_from_buf(), reading beyond the allocated memory occurs. This flaw can cause the application to crash, leading to a Denial of Service (DoS), or leak sensitive memory contents into extracted output files.","published":"2026-10-01T12:17:16.000Z","lastModified":"2026-10-05T14:25:05.000Z","status":"Analyzed","sourceIdentifier":"patrick@puiterwijk.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:H/I:N/A:H"},"cwe":["CWE-125"],"affected":["tnef project/tnef"],"epss":{"score":0.00235,"percentile":0.14439,"date":"2026-10-27","history":[{"date":"2026-10-02","score":0.00205,"percentile":0.09443}]},"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 (0.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-10-05T14:30:06.000Z","detail":{"from":"5.4","score":"8.1","severity":"HIGH","fromSeverity":"MEDIUM"},"summary":"Now scored CVSS 8.1 HIGH (was 5.4)."},{"kind":"new","label":"New CVE","at":"2026-10-01T12:17:16.000Z","detail":{"score":"5.4","severity":"MEDIUM","publishedAt":"2026-10-01T12:17:15.557Z"},"summary":"New CVE, high severity (CVSS 8.1)."}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-103678","tags":["Third Party Advisory"],"source":"patrick@puiterwijk.org"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2544476","tags":["Issue Tracking","Third Party Advisory"],"source":"patrick@puiterwijk.org"},{"url":"https://github.com/verdammelt/tnef","tags":["Product"],"source":"patrick@puiterwijk.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-103678","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."}