{"id":"CVE-2021-34532","title":"ASP.NET Core and Visual Studio Information Disclosure Vulnerability","summary":"ASP.NET Core and Visual Studio Information Disclosure Vulnerability","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","cvssSource":"cna","vendor":"Microsoft","product":"ASP.NET Core 2.1","affected":["asp.net_core_2.1 >= 2.0 < 2.1.29","asp.net_core_3.1 >= 3.0 < 3.1.18","asp.net_core_5.0 >= 5.0 < 5.0.9","visual_studio_2019_version_16.10_includes_16.0_-_16.9 >= 16.10.0 < 16.10.5","visual_studio_2019_version_16.4_includes_16.0_-_16.3 >= 16.0 < 16.4.25","visual_studio_2019_version_16.7_includes_16.0_16.6 >= 16.0.0 < 16.7.18","visual_studio_2019_version_16.9_includes_16.0_-_16.8 >= 15.0.0 < 16.9.10","visual_studio_2019_for_mac_version_8.10 >= 8.1.0 < 8.10.7"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2025-06-04T13:28:16.969889Z"},"published":"2021-08-12","updated":"2026-11-02","sourceUpdated":"2026-11-02T18:03:45.467Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2021-34532","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34532","label":"ASP.NET Core and Visual Studio Information Disclosure Vulnerability"}],"tags":["cve.org"],"epss":0.01219,"epssPercentile":0.68852,"ingestedAt":"2026-11-05T19:30:42.763Z","slug":"CVE-2021-34532","body":"## Overview\n\nASP.NET Core and Visual Studio Information Disclosure Vulnerability\n\n## Affected\n\n- `asp.net_core_2.1 >= 2.0 < 2.1.29`\n- `asp.net_core_3.1 >= 3.0 < 3.1.18`\n- `asp.net_core_5.0 >= 5.0 < 5.0.9`\n- `visual_studio_2019_version_16.10_includes_16.0_-_16.9 >= 16.10.0 < 16.10.5`\n- `visual_studio_2019_version_16.4_includes_16.0_-_16.3 >= 16.0 < 16.4.25`\n- `visual_studio_2019_version_16.7_includes_16.0_16.6 >= 16.0.0 < 16.7.18`\n- `visual_studio_2019_version_16.9_includes_16.0_-_16.8 >= 15.0.0 < 16.9.10`\n- `visual_studio_2019_for_mac_version_8.10 >= 8.1.0 < 8.10.7`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}