The vulnerability of the Microsoft Malware Protection Engine, a component of the Microsoft Defender antivirus protection tool, allows attackers to escalate their privileges.
🗓️ 21 May 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 13 Views
| Reporter | Title | Published | Views | Family All 25 |
|---|---|---|---|---|
 | Nightmare-Windows-0-day-exp | 9 Aug 202611:52 | – | githubexploit |
| Exploit for Link Following in Microsoft | 21 May 202619:16 | – | githubexploit |
| Exploit for Link Following in Microsoft | 22 May 202623:42 | – | githubexploit |
 | CVE-2026-41091 | 20 May 202613:09 | – | attackerkb |
 | About Elevation of Privilege - Microsoft Defender "RedSun" (CVE-2026-41091) vulnerability | 6 Jun 202612:00 | – | avleonov |
| June "In the Trend of VM" (#28): Linux kernel, Microsoft Defender, and Palo Alto Networks device vulnerabilities | 17 Jun 202609:00 | – | avleonov |
 | CVE-2026-41091 | 19 May 202621:00 | – | circl |
 | Microsoft Defender Link Following Vulnerability | 20 May 202600:00 | – | cisa_kev |
 | CISA Adds Seven Known Exploited Vulnerabilities to Catalog | 20 May 202612:00 | – | cisa |
 | Microsoft Defender 后置链接漏洞 | 20 May 202600:00 | – | cnnvd |
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01 Jun 2026 00:00Current
6.1Medium risk
Vulners AI Score6.1
CVSS 26.8
CVSS 37.8
EPSS0.09641