{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-42829: Windows Administrator Protection Secure Feature Bypass Vulnerability","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-42829","status":"final","version":"1","initial_release_date":"2026-06-09T17:05:20.196Z","current_release_date":"2026-06-10T17:54:11.555Z","revision_history":[{"date":"2026-06-09T17:05:20.196Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"Improper access control in Windows Administrator Protection allows an authorized attacker to bypass a security feature locally.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-42829 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-42829"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-42829"},{"category":"external","summary":"Windows Administrator Protection Secure Feature Bypass Vulnerability","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42829"}]},"product_tree":{"branches":[{"category":"vendor","name":"Microsoft","branches":[{"category":"product_name","name":"Windows 11 Version 24H2","branches":[{"category":"product_version_range","name":">=10.0.26100.0 <10.0.26100.8655","product":{"name":"Microsoft Windows 11 Version 24H2 >=10.0.26100.0 <10.0.26100.8655","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:microsoft:windows_11_version_24h2:*:*:*:*:*:*:*:*"}}}]}]},{"category":"vendor","name":"Microsoft","branches":[{"category":"product_name","name":"Windows 11 Version 25H2","branches":[{"category":"product_version_range","name":">=10.0.26200.0 <10.0.26200.8655","product":{"name":"Microsoft Windows 11 Version 25H2 >=10.0.26200.0 <10.0.26200.8655","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:microsoft:windows_11_version_25h2:*:*:*:*:*:*:*:*"}}}]}]},{"category":"vendor","name":"Microsoft","branches":[{"category":"product_name","name":"Windows 11 version 26H1","branches":[{"category":"product_version_range","name":">=10.0.28000.0 <10.0.28000.2269","product":{"name":"Microsoft Windows 11 version 26H1 >=10.0.28000.0 <10.0.28000.2269","product_id":"CSAFPID-3","product_identification_helper":{"cpe":"cpe:2.3:a:microsoft:windows_11_version_26h1:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-42829","title":"Windows Administrator Protection Secure Feature Bypass Vulnerability","notes":[{"category":"description","text":"Improper access control in Windows Administrator Protection allows an authorized attacker to bypass a security feature locally.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1","CSAFPID-2","CSAFPID-3"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"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","baseScore":7.8,"baseSeverity":"HIGH"},"products":["CSAFPID-1","CSAFPID-2","CSAFPID-3"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 10.0.26100.8655, 10.0.26200.8655, 10.0.28000.2269.","product_ids":["CSAFPID-1","CSAFPID-2","CSAFPID-3"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42829"}]}]}