Description
Microsoft Defender Denial of Service Vulnerability
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft Defender Antimalware Platform | 4.0.0.0 – < 4.18.26040.7 | 4.18.26040.7 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
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salihuahmad105-creator/Vulnerability-scanner ★ 0 · Jul 2, 2026
DESIGN AND IMPLEMENTATION OF A VULNERABILITY SCANNER FOR CVE-2026-45498 IN MICROSOFT DEFENDER
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 2
- WID-SEC-2026-1603 Microsoft Defender und Malware Protection Engine: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 28, 2026
- MSRC-CVE-2026-45498 Microsoft Defender Denial of Service Vulnerability Microsoft Security Response Center · May 26, 2026
References
- Microsoft Defender Denial of Service Vulnerability vendor-advisory patch