Status: KEV | Advisory ID: CVE-2026-45498
| CVE | CVE-2026-45498 |
| Affected products | Microsoft Defender |
| Exploitation status | Listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating confirmed active exploitation. |
| KEV listing | Added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-05-20. |
| Exploitation prediction (EPSS) | 63% probability of exploitation in the next 30 days (99% percentile) -- FIRST.org's EPSS model. |
| Federal remediation deadline | 2026-06-03 (CISA KEV, Binding Operational Directive). |
Microsoft Defender contains an unspecified vulnerability that allows for denial of service.
| Source | Reference |
|---|---|
| NVD | https://nvd.nist.gov/vuln/detail/CVE-2026-45498 |