{"schema_version":1,"title":"Microsoft Defender vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 8 vulnerabilities in Microsoft Defender: 0 in the last 7 days and 1 in the last 90 days, 6 of them critical and 6 exploited in the wild. The most recent, CVE-2026-69414, was published on 14 August 2026.","url":"https://junglewise.ai/threats/technologies/defender","json_url":"https://junglewise.ai/threats/technologies/defender.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/defender","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":2,"all_time":8,"critical":6,"exploited":6,"last_7_days":0,"last_30_days":0,"last_90_days":1,"last_365_days":6},"latest":[{"cve":"CVE-2026-69414","cvss":7.8,"epss":0.0033,"slug":"cve-2026-69414-microsoft-defender-malware-protection-engine-elevation-of","title":"Microsoft Defender Malware Protection Engine elevation of privilege","severity":"high","exploited":false,"published_at":"2026-08-14T22:17:06.81+00:00","url":"https://junglewise.ai/threats/cve-2026-69414-microsoft-defender-malware-protection-engine-elevation-of"},{"cve":"CVE-2026-45584","cvss":8.1,"slug":"cve-2026-45584-microsoft-defender-heap-buffer-overflow","title":"Microsoft Defender heap buffer overflow","severity":"high","exploited":false,"published_at":"2026-05-20T13:16:37.333+00:00","url":"https://junglewise.ai/threats/cve-2026-45584-microsoft-defender-heap-buffer-overflow"},{"cve":"CVE-2026-45498","cvss":4,"slug":"cve-2026-45498-microsoft-defender-denial-of-service","title":"Microsoft Defender denial of service","severity":"critical","exploited":true,"published_at":"2026-05-20T13:16:36.78+00:00","url":"https://junglewise.ai/threats/cve-2026-45498-microsoft-defender-denial-of-service"},{"cve":"CVE-2026-41091","cvss":7.8,"slug":"cve-2026-41091-microsoft-defender-privilege-escalation-via-improper-link","title":"Microsoft Defender privilege escalation via improper link resolution","severity":"critical","exploited":true,"published_at":"2026-05-20T13:16:29.173+00:00","url":"https://junglewise.ai/threats/cve-2026-41091-microsoft-defender-privilege-escalation-via-improper-link"},{"cve":"CVE-2008-4250","cvss":10,"epss":0.9348,"slug":"cve-2008-4250-microsoft-windows-buffer-overflow-in-server-service","title":"Microsoft Windows buffer overflow in Server service","severity":"critical","exploited":true,"published_at":"2026-05-20T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2008-4250-microsoft-windows-buffer-overflow-in-server-service"},{"cve":"CVE-2026-33825","cvss":7.8,"epss":0.0675,"slug":"cve-2026-33825-microsoft-defender-privilege-escalation-in-antimalware-platform","title":"Microsoft Defender privilege escalation in Antimalware Platform","severity":"critical","exploited":true,"published_at":"2026-04-14T18:17:35.1+00:00","url":"https://junglewise.ai/threats/cve-2026-33825-microsoft-defender-privilege-escalation-in-antimalware-platform"},{"cve":"CVE-2022-44698","cvss":5.4,"slug":"cve-2022-44698-microsoft-defender-smartscreen-security-feature-bypass","title":"Microsoft Defender SmartScreen Security Feature Bypass Vulnerability","severity":"critical","exploited":true,"published_at":"2022-12-13T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2022-44698-microsoft-defender-smartscreen-security-feature-bypass"},{"cve":"CVE-2021-1647","cvss":7.8,"slug":"cve-2021-1647-microsoft-defender-remote-code-execution-vulnerability","title":"Microsoft Defender Remote Code Execution Vulnerability","severity":"critical","exploited":true,"published_at":"2021-11-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2021-1647-microsoft-defender-remote-code-execution-vulnerability"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Microsoft Windows","slug":"windows-","vulnerabilities":963,"url":"https://junglewise.ai/threats/technologies/windows-"},{"name":"Microsoft Windows 10","slug":"windows-10","vulnerabilities":588,"url":"https://junglewise.ai/threats/technologies/windows-10"},{"name":"Microsoft Windows 11","slug":"windows-11","vulnerabilities":493,"url":"https://junglewise.ai/threats/technologies/windows-11"},{"name":"Microsoft Windows Server 2012","slug":"windows-server-2012","vulnerabilities":293,"url":"https://junglewise.ai/threats/technologies/windows-server-2012"},{"name":"Microsoft Windows Server 2016","slug":"windows-server-2016","vulnerabilities":213,"url":"https://junglewise.ai/threats/technologies/windows-server-2016"},{"name":"Microsoft Windows Server 2019","slug":"windows-server-2019","vulnerabilities":211,"url":"https://junglewise.ai/threats/technologies/windows-server-2019"},{"name":"Microsoft Windows 11 24h2","slug":"windows-11-24h2","vulnerabilities":192,"url":"https://junglewise.ai/threats/technologies/windows-11-24h2"},{"name":"Microsoft Windows Server 2022","slug":"windows-server-2022","vulnerabilities":178,"url":"https://junglewise.ai/threats/technologies/windows-server-2022"},{"name":"Microsoft Edge","slug":"edge-chromium-based","vulnerabilities":167,"url":"https://junglewise.ai/threats/technologies/edge-chromium-based"},{"name":"Microsoft Windows 11 25h2","slug":"windows-11-25h2","vulnerabilities":161,"url":"https://junglewise.ai/threats/technologies/windows-11-25h2"},{"name":"Microsoft Windows 11 Version 26H1","slug":"windows-11-version-26h1","vulnerabilities":135,"url":"https://junglewise.ai/threats/technologies/windows-11-version-26h1"},{"name":"Microsoft Windows Server 2025","slug":"windows-server-2025","vulnerabilities":124,"url":"https://junglewise.ai/threats/technologies/windows-server-2025"}],"technology":{"hub":true,"name":"Microsoft Defender","slug":"defender","vendor":{"name":"Microsoft","slug":"microsoft","url":"https://junglewise.ai/threats/vendors/microsoft"},"aliases":[],"category":"software-suite","homepage":"https://www.microsoft.com/en-us/windows/microsoft-defender-antivirus","description":"A security software suite providing antivirus, firewall, and endpoint protection for Windows environments.","url":"https://junglewise.ai/threats/technologies/defender"},"most_severe":[{"cve":"CVE-2008-4250","cvss":10,"epss":0.9348,"slug":"cve-2008-4250-microsoft-windows-buffer-overflow-in-server-service","title":"Microsoft Windows buffer overflow in Server service","severity":"critical","exploited":true,"published_at":"2026-05-20T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2008-4250-microsoft-windows-buffer-overflow-in-server-service"},{"cve":"CVE-2026-33825","cvss":7.8,"epss":0.0675,"slug":"cve-2026-33825-microsoft-defender-privilege-escalation-in-antimalware-platform","title":"Microsoft Defender privilege escalation in Antimalware Platform","severity":"critical","exploited":true,"published_at":"2026-04-14T18:17:35.1+00:00","url":"https://junglewise.ai/threats/cve-2026-33825-microsoft-defender-privilege-escalation-in-antimalware-platform"},{"cve":"CVE-2026-41091","cvss":7.8,"slug":"cve-2026-41091-microsoft-defender-privilege-escalation-via-improper-link","title":"Microsoft Defender privilege escalation via improper link resolution","severity":"critical","exploited":true,"published_at":"2026-05-20T13:16:29.173+00:00","url":"https://junglewise.ai/threats/cve-2026-41091-microsoft-defender-privilege-escalation-via-improper-link"},{"cve":"CVE-2021-1647","cvss":7.8,"slug":"cve-2021-1647-microsoft-defender-remote-code-execution-vulnerability","title":"Microsoft Defender Remote Code Execution Vulnerability","severity":"critical","exploited":true,"published_at":"2021-11-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2021-1647-microsoft-defender-remote-code-execution-vulnerability"},{"cve":"CVE-2022-44698","cvss":5.4,"slug":"cve-2022-44698-microsoft-defender-smartscreen-security-feature-bypass","title":"Microsoft Defender SmartScreen Security Feature Bypass Vulnerability","severity":"critical","exploited":true,"published_at":"2022-12-13T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2022-44698-microsoft-defender-smartscreen-security-feature-bypass"},{"cve":"CVE-2026-45498","cvss":4,"slug":"cve-2026-45498-microsoft-defender-denial-of-service","title":"Microsoft Defender denial of service","severity":"critical","exploited":true,"published_at":"2026-05-20T13:16:36.78+00:00","url":"https://junglewise.ai/threats/cve-2026-45498-microsoft-defender-denial-of-service"},{"cve":"CVE-2026-45584","cvss":8.1,"slug":"cve-2026-45584-microsoft-defender-heap-buffer-overflow","title":"Microsoft Defender heap buffer overflow","severity":"high","exploited":false,"published_at":"2026-05-20T13:16:37.333+00:00","url":"https://junglewise.ai/threats/cve-2026-45584-microsoft-defender-heap-buffer-overflow"},{"cve":"CVE-2026-69414","cvss":7.8,"epss":0.0033,"slug":"cve-2026-69414-microsoft-defender-malware-protection-engine-elevation-of","title":"Microsoft Defender Malware Protection Engine elevation of privilege","severity":"high","exploited":false,"published_at":"2026-08-14T22:17:06.81+00:00","url":"https://junglewise.ai/threats/cve-2026-69414-microsoft-defender-malware-protection-engine-elevation-of"}],"generated_at":"2026-09-26T09:24:00.138874+00:00"}