{"id":"CVE-2026-88131","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-88131","generatedAt":"2026-10-23T21:17:42.808Z","title":"Deserialization of untrusted data in Microsoft Dataverse allows an unauthorized attacker to execute code over a network.","description":"Deserialization of untrusted data in Microsoft Dataverse allows an unauthorized attacker to execute code over a network.","published":"2026-10-08T23:17:05.000Z","lastModified":"2026-10-15T18:38:18.000Z","status":"Analyzed","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-502"],"affected":["microsoft/dataverse"],"epss":{"score":0.00823,"percentile":0.56892,"date":"2026-10-22","history":[{"date":"2026-10-09","score":0.00841,"percentile":0.56634}]},"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 (0.82%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-08T23:17:05.000Z","detail":{"score":"9.8","severity":"CRITICAL","publishedAt":"2026-10-08T23:17:04.590Z"},"summary":"New CVE, critical severity (CVSS 9.8)."}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88131","tags":["Vendor Advisory"],"source":"secure@microsoft.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-88131","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."}