PatchTheCVEmalware protection engine vulnerabilities and fixes
Recent CVEs affecting malware protection engine, with upgrade or downgrade steps. 2 tracked.
Also searched as: malwareprotectionengine.
malware protection engine has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 2. Most recent: 2026-07-14. Highest priority: CVE-2026-55011 (score 42/100).
- CVE-2026-55011 HIGH 7.8 UPGRADE Integer underflow (wrap or wraparound) in Microsoft Defender allows an unauthorized attacker to execute code l
- CVE-2026-55012 HIGH 7.8 UPGRADE Integer overflow or wraparound in Microsoft Defender allows an unauthorized attacker to execute code locally.
FAQ
How do I fix malware protection engine vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is malware protection engine being exploited right now?
None of the tracked malware protection engine CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which malware protection engine CVE should I patch first?
CVE-2026-55011 currently ranks highest (42/100): Integer underflow (wrap or wraparound) in Microsoft Defender allows an unauthorized attacker to execute code l.