{"id":"CVE-2021-26434","aliases":["EUVD-2021-13239","GHSA-8qhp-jq8m-c4m4"],"status":"published","title":"Visual Studio Elevation of Privilege Vulnerability","description":"Visual Studio Elevation of Privilege Vulnerability","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00892,"percentile":0.5985,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269","CWE-732"],"published":"2021-09-15T11:23:00Z","modified":"2026-08-10T18:32:07Z","products":[{"vendor":"microsoft","product":"microsoft visual studio 2017 version 15.9 (includes 15.0 - 15.8)"},{"vendor":"microsoft","product":"microsoft visual studio 2019 version 16.11 (includes 16.0 - 16.10)"},{"vendor":"microsoft","product":"microsoft visual studio 2019 version 16.4 (includes 16.0 - 16.3)"},{"vendor":"microsoft","product":"microsoft visual studio 2019 version 16.7 (includes 16.0 – 16.6)"},{"vendor":"microsoft","product":"microsoft visual studio 2019 version 16.9 (includes 16.0 - 16.8)"},{"vendor":"microsoft","product":"visual_studio_2017"},{"vendor":"microsoft","product":"visual_studio_2019"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26434","tags":["vendor-advisory","patch"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26434","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-1077/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26434"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-1077"},{"url":"https://github.com/advisories/GHSA-8qhp-jq8m-c4m4"}],"sources":{"cve":[{"id":"CVE-2021-26434","title":"Visual Studio Elevation of Privilege Vulnerability","description":"Visual Studio Elevation of Privilege Vulnerability","status":"published","published":"2021-09-15T11:23:00Z","modified":"2026-08-10T15:10:59.14Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13239","description":"Visual Studio Elevation of Privilege Vulnerability","status":"published","published":"2021-09-15T11:23:00Z","modified":"2026-08-10T15:10:59Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T18:02:04.543433Z"}],"ghsa":[{"id":"GHSA-8qhp-jq8m-c4m4","title":"Visual Studio Elevation of Privilege Vulnerability","description":"Visual Studio Elevation of Privilege Vulnerability","status":"published","published":"2022-05-24T19:14:47Z","modified":"2026-08-10T18:32:07Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269","CWE-732"],"updated_at":"2026-11-02T15:10:15.270288Z"}],"nvd":[{"id":"CVE-2021-26434","description":"Visual Studio Elevation of Privilege Vulnerability","status":"published","published":"2021-09-15T12:15:09.15Z","modified":"2026-08-10T16:17:34.19Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:06:58.502206Z"}]}}