Microsoft
Defender
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Current version
1.1.26060.3008
- Release date
- July 21, 2026
- Security status
- 8 high-severity CVEs tracked in the last 90 days. Current version impact is unclear.
Source
Vendor Release Information
Public release notes are linked for the latest stored release.
Release history
See the latest published releases stored for this product.
| Version | Published | Notes |
|---|---|---|
| 1.1.26060.3008 | 2026-07-21 | Release Notes |
| 1.1.26050.11 | 2026-07-06 | Release Notes |
| 1.1.26040.8 | 2026-06-08 | Release Notes |
| 1.1.26030.3008 | 2026-05-19 | Release Notes |
Vulnerability tracking
versionPing monitors CVEs for this product. Matching CVEs are listed below. We only display CVEs with a CVSS score of 7.0 or higher that were published within the last 90 days.
Affected status is inferred from published affected version ranges where available. Always verify against the vendor advisory before making production decisions.
| CVE | Severity | Published | Status | Summary |
|---|---|---|---|---|
| CVE-2026-50658 | HIGH (7.0) | 2026-07-14 | Current versionunclear | Time-of-check time-of-use (toctou) race condition in Microsoft Defender allows an authorized attacker to elevate privileges locally. |
| CVE-2026-55012 | HIGH (7.8) | 2026-07-14 | Current versionunclear | Integer overflow or wraparound in Microsoft Defender allows an unauthorized attacker to execute code locally. |
| CVE-2026-55011 | HIGH (7.8) | 2026-07-14 | Current versionunclear | Integer underflow (wrap or wraparound) in Microsoft Defender allows an unauthorized attacker to execute code locally. |
| CVE-2026-50656 | HIGH (7.8) | 2026-06-16 | Current versionunclear | Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "RoguePlanet ". |
| CVE-2026-45647 | HIGH (7.0) | 2026-06-09 | Current versionunclear | Time-of-check time-of-use (toctou) race condition in Microsoft Defender for Endpoint allows an authorized attacker to elevate privileges locally. |
| CVE-2026-45584 | HIGH (8.1) | 2026-05-20 | Current versionunclear | Heap-based buffer overflow in Microsoft Defender allows an unauthorized attacker to execute code over a network. |
| CVE-2026-45498 | HIGH (7.5) | 2026-05-20 | Current versionunclear | Microsoft Defender Denial of Service Vulnerability |
| CVE-2026-41091 | HIGH (7.8) | 2026-05-20 | Current versionunclear | Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to elevate privileges locally. |