{"id":"CVE-2024-49147","aliases":["EUVD-2024-43766","GHSA-hwhg-f3ff-q3c4"],"status":"published","title":"Microsoft Update Catalog Elevation of Privilege Vulnerability","description":"Deserialization of untrusted data in Microsoft Update Catalog allows an unauthorized attacker to elevate privileges on the website’s webserver.","severity":{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N/E:P/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01286,"percentile":0.70352,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2024-12-12T19:07:35Z","modified":"2026-06-17T07:59:29Z","products":[{"vendor":"microsoft","product":"microsoft update catalog"},{"vendor":"microsoft","product":"update_catalog"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49147","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-49147"},{"url":"https://github.com/advisories/GHSA-hwhg-f3ff-q3c4"}],"sources":{"cve":[{"id":"CVE-2024-49147","title":"Microsoft Update Catalog Elevation of Privilege Vulnerability","description":"Deserialization of untrusted data in Microsoft Update Catalog allows an unauthorized attacker to elevate privileges on the website’s webserver.","status":"published","published":"2024-12-12T19:07:35.528Z","modified":"2026-06-09T18:30:43.652Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N/E:P/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:33:55.977982Z"}],"euvd":[{"id":"EUVD-2024-43766","description":"Deserialization of untrusted data in Microsoft Update Catalog allows an unauthorized attacker to elevate privileges on the website’s webserver.","status":"published","published":"2024-12-12T19:07:35Z","modified":"2026-06-09T18:30:43Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N/E:P/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-02T18:20:46.299732Z"}],"ghsa":[{"id":"GHSA-hwhg-f3ff-q3c4","title":"Deserialization of untrusted data in Microsoft Update Catalog allows an unauthorized attacker to...","description":"Deserialization of untrusted data in Microsoft Update Catalog allows an unauthorized attacker to elevate privileges on the website’s webserver.","status":"published","published":"2024-12-12T21:30:47Z","modified":"2024-12-12T21:30:48Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N","level":"critical"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:59:09.80967Z"}],"nvd":[{"id":"CVE-2024-49147","description":"Deserialization of untrusted data in Microsoft Update Catalog allows an unauthorized attacker to elevate privileges on the website’s webserver.","status":"published","published":"2024-12-12T19:15:13.057Z","modified":"2026-06-17T07:59:29.38Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:10:40.137849Z"}]}}