{"id":"CVE-2026-118157","aliases":[],"cve":{"records":[{"id":"CVE-2026-118157","source":"microsoft","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-27T17:35:36.728Z","published":"2026-11-10T18:21:48.749Z","modified":"2026-11-13T18:10:31.852Z"}],"publishers":[{"name":"microsoft","role":"CNA","organizationId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","modified":"2026-11-13T18:10:31.852Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-10T19:49:00.192Z"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118157","tags":["vendor-advisory","patch"],"source":"microsoft"}],"weaknesses":[{"id":"CWE-1390","description":"CWE-1390: Weak Authentication","source":"microsoft"}],"applicability":[{"source":"microsoft","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:exchange_server_se:*:RTM:*:*:*:*:*:*","versionStartIncluding":"15.02.0.0","versionEndExcluding":"15.02.2562.057"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-11-10T19:44:44.483193Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"Microsoft Exchange Server Elevation of Privilege Vulnerability","titleSource":"microsoft","descriptionSource":"microsoft","description":"Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.","score":7.2,"severity":"high","published":"2026-11-10T18:21:48.749Z","modified":"2026-11-13T18:10:31.852Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Microsoft","name":"Microsoft Exchange Server Subscription Edition RTM","platforms":["x64-based Systems"],"versions":[{"version":"15.02.0.0","status":"affected","lessThan":"15.02.2562.057","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-118157"}],"remediation":[],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118157"],"sources":[{"name":"CVE","id":"CVE-2026-118157","modified":"2026-11-13T18:10:31.852Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-118157"}],"assessments":[{"source":"microsoft","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","score":7.2}],"sourceAffected":[],"observedAt":"2026-11-13T18:34:15.199Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T01:20:32.796Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-12T05:05:35.194Z","attemptedAt":"2026-11-12T05:05:35.194Z"},{"source":"GHSA","status":"available","checkedAt":"2026-11-12T05:05:35.386Z","attemptedAt":"2026-11-12T05:05:35.386Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-12T05:05:35.822Z","attemptedAt":"2026-11-12T05:05:35.822Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-11-12T05:05:35.001Z","attemptedAt":"2026-11-12T05:05:35.001Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-118157","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118157","modified":"2026-11-10T20:18:15.143","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-11-12T05:05:35.194Z"},{"source":"GitHub Advisory Database","id":"GHSA-vhh8-v8mf-g62m","url":"https://github.com/advisories/GHSA-vhh8-v8mf-g62m","modified":"2026-11-10T21:33:05Z","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-11-12T05:05:35.386Z"},{"source":"ENISA EUVD","id":"EUVD-2026-122246","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-122246","modified":"Nov 11, 2026, 5:17:16 PM","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","checkedAt":"2026-11-12T05:05:35.822Z"}],"aiSummary":{"text":"Microsoft Exchange Server Subscription Edition RTM version 15.02.0.0 is affected by weak authentication, allowing an authorized attacker to elevate privileges over a network. The vulnerability affects versions up to but not including 15.02.2562.057. An attacker with network access is required.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-11T00:26:31.229Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-118157"}]}}