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CVE-2026-45498 Microsoft Defender Denial of Service Vulnerability

🗓️ 20 May 2026 13:09:12Reported by microsoftType 
cvelist
 cvelist
🔗 www.cve.org👁 337 Views

CVE-2026-45498 describes a denial of service vulnerability in Microsoft Defender.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
githubexploit
GithubExploit
Nightmare-Windows-0-day-exp
9 Aug 202611:52
–githubexploit
githubexploit
GithubExploit
Exploit for Link Following in Microsoft
22 May 202623:42
–githubexploit
attackerkb
attackerkb
CVE-2026-45498
20 May 202613:09
–attackerkb
bdu_fstec
BDU FSTEC
Microsoft Defender Antimalware Platform Resource Consumption DoS
21 May 202600:00
–bdu_fstec
circl
Circl
CVE-2026-45498
19 May 202621:00
–circl
cisa_kev
CISA KEV Catalog
Microsoft Defender Denial of Service Vulnerability
20 May 202600:00
–cisa_kev
cisa
CISA
CISA Adds Seven Known Exploited Vulnerabilities to Catalog
20 May 202612:00
–cisa
cnnvd
CNNVD
Microsoft Defender security vulnerabilities
19 May 202600:00
–cnnvd
cve
CVE
CVE-2026-45498
20 May 202613:09
–cve
euvd
EUVD
EUVD-2026-31102
20 May 202613:09
–euvd
Rows per page
[
  {
    "vendor": "Microsoft",
    "product": "Microsoft Defender Antimalware Platform",
    "versions": [
      {
        "version": "4.0.0.0",
        "lessThan": "4.18.26040.7",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  }
]

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10 Aug 2026 15:13Current
CVSS 3.14
EPSS0.63076
SSVC
337