{"id":"CVE-2026-55139","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-55139","generatedAt":"2026-10-28T03:41:35.133Z","title":"Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.","description":"Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.","published":"2026-07-14T18:18:21.000Z","lastModified":"2026-07-16T16:00:53.000Z","status":"Analyzed","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.1","score":3.3,"severity":"LOW","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N"},"cwe":["CWE-125"],"affected":["microsoft/365 apps","microsoft/microsoft 365","microsoft/office 2016","microsoft/office 2019","microsoft/office 2021","microsoft/office 2024"],"epss":{"score":0.00482,"percentile":0.41357,"date":"2026-10-27","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 (0.48%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55139","tags":["Patch","Vendor Advisory"],"source":"secure@microsoft.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-55139","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."}