{"id":"CVE-2026-101014","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-101014","generatedAt":"2026-10-27T22:46:29.833Z","title":"A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2.","description":"A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarc_util_cleanup in the library libopendmarc/opendmarc_util.c of the component DMARC Record Parser. Performing a manipulation results in off-by-one. The attack may be initiated remotely. The exploit is now public and may be used. The patch is named b3b1da9264bc80324094a27c71e7369bdedc62ae. To fix this issue, it is recommended to deploy a patch.","published":"2026-09-28T09:17:04.000Z","lastModified":"2026-09-28T15:15:34.000Z","status":"Awaiting Analysis","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:L/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-193"],"affected":[],"epss":{"score":0.00314,"percentile":0.24155,"date":"2026-10-26","history":[{"date":"2026-09-28","score":0.00314,"percentile":0.21848}]},"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 (0.31%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-28T09:17:04.000Z","detail":{"score":"5.5","severity":"MEDIUM","publishedAt":"2026-09-28T09:17:03.893Z"},"summary":"New CVE, medium severity (CVSS 5.5)."}],"references":[{"url":"https://github.com/trusteddomainproject/OpenDMARC/commit/b3b1da9264bc80324094a27c71e7369bdedc62ae","source":"cna@vuldb.com"},{"url":"https://github.com/trusteddomainproject/OpenDMARC/pull/188","source":"cna@vuldb.com"},{"url":"https://github.com/trusteddomainproject/OpenDMARC/pull/344","source":"cna@vuldb.com"},{"url":"https://vuldb.com/cve/CVE-2026-101014","source":"cna@vuldb.com"},{"url":"https://vuldb.com/submit/917100","source":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/410884","source":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/410884/cti","source":"cna@vuldb.com"},{"url":"https://weitongli.com/share/opendmarc-cleanup-off-by-one.html","source":"cna@vuldb.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-101014","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."}