{"id":"CVE-2026-101279","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-101279","generatedAt":"2026-10-28T01:42:23.965Z","title":"A security vulnerability has been detected in Trusted Domain Project OpenDMARC up to 1.4.2.","description":"A security vulnerability has been detected in Trusted Domain Project OpenDMARC up to 1.4.2. This impacts an unknown function of the file libopendmarc/opendmarc_policy.c of the component DMARC Parser. The manipulation of the argument pct leads to integer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.","published":"2026-09-29T01:16:44.000Z","lastModified":"2026-09-29T18:57:24.000Z","status":"Deferred","sourceIdentifier":"cna@vuldb.com","cvss":{"version":"4.0","score":5.5,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-189","CWE-190"],"affected":[],"epss":{"score":0.00325,"percentile":0.25327,"date":"2026-10-26","history":[{"date":"2026-09-29","score":0.00324,"percentile":0.23029}]},"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 (0.33%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-29T01:16:44.000Z","detail":{"score":"5.5","severity":"MEDIUM","publishedAt":"2026-09-29T01:16:43.997Z"},"summary":"New CVE, medium severity (CVSS 5.5)."}],"references":[{"url":"https://vuldb.com/cve/CVE-2026-101279","source":"cna@vuldb.com"},{"url":"https://vuldb.com/submit/918280","source":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/411036","source":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/411036/cti","source":"cna@vuldb.com"},{"url":"https://xuyongzhe-vt.github.io/share/dmarc-pct-integer-handling.html","source":"cna@vuldb.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-101279","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."}