{"schema_version":1,"title":"Microsoft Malware Protection Engine vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in Microsoft Malware Protection Engine: 0 in the last 7 days and 3 in the last 90 days, 1 of them critical and 1 exploited in the wild. The most recent, CVE-2026-69414, was published on 14 August 2026.","url":"https://junglewise.ai/threats/technologies/malware-protection-engine","json_url":"https://junglewise.ai/threats/technologies/malware-protection-engine.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/malware-protection-engine","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":3,"all_time":4,"critical":1,"exploited":1,"last_7_days":0,"last_30_days":0,"last_90_days":3,"last_365_days":3},"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-2026-55012","cvss":7.8,"slug":"cve-2026-55012-microsoft-malware-protection-engine-integer-overflow-code","title":"Microsoft Malware Protection Engine integer overflow code execution","severity":"high","exploited":false,"published_at":"2026-07-14T17:17:09.107+00:00","url":"https://junglewise.ai/threats/cve-2026-55012-microsoft-malware-protection-engine-integer-overflow-code"},{"cve":"CVE-2026-55011","cvss":7.8,"slug":"cve-2026-55011-microsoft-defender-integer-underflow-in-malware-protection-engine","title":"Microsoft Defender integer underflow in Malware Protection Engine","severity":"high","exploited":false,"published_at":"2026-07-14T17:17:08.99+00:00","url":"https://junglewise.ai/threats/cve-2026-55011-microsoft-defender-integer-underflow-in-malware-protection-engine"},{"cve":"CVE-2017-8540","cvss":7.8,"slug":"cve-2017-8540-microsoft-malware-protection-engine-improper-restriction-of","title":"Microsoft Malware Protection Engine Improper Restriction of Operations Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2017-8540-microsoft-malware-protection-engine-improper-restriction-of"}],"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":2},{"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 Malware Protection Engine","slug":"malware-protection-engine","vendor":{"name":"Microsoft","slug":"microsoft","url":"https://junglewise.ai/threats/vendors/microsoft"},"aliases":[],"category":"library","homepage":"https://www.microsoft.com/en-us/security/blog/2017/05/08/microsoft-releases-security-update-to-address-critical-vulnerability-in-malware-protection-engine/","description":"A core component of Microsoft security products that provides scanning, detection, and cleaning capabilities for malicious software.","url":"https://junglewise.ai/threats/technologies/malware-protection-engine"},"most_severe":[{"cve":"CVE-2017-8540","cvss":7.8,"slug":"cve-2017-8540-microsoft-malware-protection-engine-improper-restriction-of","title":"Microsoft Malware Protection Engine Improper Restriction of Operations Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2017-8540-microsoft-malware-protection-engine-improper-restriction-of"},{"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-2026-55012","cvss":7.8,"slug":"cve-2026-55012-microsoft-malware-protection-engine-integer-overflow-code","title":"Microsoft Malware Protection Engine integer overflow code execution","severity":"high","exploited":false,"published_at":"2026-07-14T17:17:09.107+00:00","url":"https://junglewise.ai/threats/cve-2026-55012-microsoft-malware-protection-engine-integer-overflow-code"},{"cve":"CVE-2026-55011","cvss":7.8,"slug":"cve-2026-55011-microsoft-defender-integer-underflow-in-malware-protection-engine","title":"Microsoft Defender integer underflow in Malware Protection Engine","severity":"high","exploited":false,"published_at":"2026-07-14T17:17:08.99+00:00","url":"https://junglewise.ai/threats/cve-2026-55011-microsoft-defender-integer-underflow-in-malware-protection-engine"}],"generated_at":"2026-09-26T09:24:00.138874+00:00"}