Microsoft March 2026 Patch Tuesday (83 CVEs)
Security Patch Release
Summary
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Microsoft released its March 2026 Patch Tuesday update with 83 CVEs across its product range, reducing exposure to a broad set of flaws that includes issues Microsoft expects attackers are more likely to exploit. The release matters because it covers critical vulnerabilities, including RCE, EoP, and data-theft bugs, while Microsoft also said the most severe issue was already patched and mitigated.
Related Happenings
Microsoft security patch release for CVE-2026-45659
Security Patch Release
First: 26.05.2026 14:49
Last: 26.05.2026 14:49
Sources 1
About this happening:
Microsoft released **SharePoint** updates for **CVE-2026-45659**, a **remote code execution** flaw that could let an authenticated attacker run code over the network without eleva...
Microsoft security patch release for CVE-2026-45659
Security Patch ReleaseAbout this happening: Microsoft released **SharePoint** updates for **CVE-2026-45659**, a **remote code execution** flaw that could let an authenticated attacker run code over the network without eleva...
Microsoft security patch release for CVE-2026-41091 and CVE-2026-45498
Security Patch Release
First: 21.05.2026 10:49
Last: 21.05.2026 10:49
Sources 1
About this happening:
Microsoft rolled out security updates for Defender and related malware protection components to address two zero-days: CVE-2026-41091 and CVE-2026-45498. The fixes cover affected...
Microsoft security patch release for CVE-2026-41091 and CVE-2026-45498
Security Patch ReleaseAbout this happening: Microsoft rolled out security updates for Defender and related malware protection components to address two zero-days: CVE-2026-41091 and CVE-2026-45498. The fixes cover affected...
Latest development: 21.05.2026 12:52
Microsoft released patches for Microsoft Defender Antimalware Platform version 4.18.26040.7 to address CVE-2026-41091, a link-following privilege-escalation flaw that can let an authorized attacker elevate privileges locally to System, and CVE-2026-45498, a denial-of-service flaw. Microsoft said both vulnerabilities were publicly disclosed and exploited in the wild as zero-days. CISA added both flaws to its Known Exploited Vulnerabilities (KEV) list and urged federal agencies to patch them by June 3.
Microsoft Exchange CVE-2026-42897 mitigation advisory
Advisory/Mitigation
First: 15.05.2026 12:40
Last: 15.05.2026 12:40
Sources 1
About this happening:
**Microsoft** issued immediate mitigation guidance for **CVE-2026-42897**, reducing risk for **Exchange Server 2016, 2019, and Subscription Edition (SE)** on-premises servers that...
Microsoft Exchange CVE-2026-42897 mitigation advisory
Advisory/MitigationAbout this happening: **Microsoft** issued immediate mitigation guidance for **CVE-2026-42897**, reducing risk for **Exchange Server 2016, 2019, and Subscription Edition (SE)** on-premises servers that...
Latest development: 15.05.2026 15:35
Microsoft issued temporary mitigation guidance for CVE-2026-42897 while a patch is still in development, recommending the Exchange Emergency Mitigation (EM) Service, which is enabled by default and can be checked with the Exchange Health Checker script, or the Exchange On-premises Mitigation Tool (EOMT) for disconnected or air-gapped environments. Microsoft noted that the mitigations can disrupt features such as OWA Print Calendar and Inline images, and that servers older than March 2023 cannot receive new mitigations through EM Service.
Microsoft MDASH enters limited private preview for AI-driven vulnerability discovery at scale
Security Tool/Service
First: 13.05.2026 16:46
Last: 13.05.2026 16:46
Sources 1
About this happening:
Microsoft's **MDASH** has entered **limited private preview**, adding a new **AI-driven vulnerability discovery** service that can validate and prove exploitable defects at scale....
Microsoft MDASH enters limited private preview for AI-driven vulnerability discovery at scale
Security Tool/ServiceAbout this happening: Microsoft's **MDASH** has entered **limited private preview**, adding a new **AI-driven vulnerability discovery** service that can validate and prove exploitable defects at scale....
Microsoft May 2026 Patch Tuesday release
Security Patch Release
First: 13.05.2026 13:36
Last: 13.05.2026 13:36
Sources 1
About this happening:
Microsoft's **May 13, 2026 Patch Tuesday** release fixed **138 vulnerabilities** across its product portfolio, including **Windows**, **Azure**, and **Edge**. None of the flaws we...
Microsoft May 2026 Patch Tuesday release
Security Patch ReleaseAbout this happening: Microsoft's **May 13, 2026 Patch Tuesday** release fixed **138 vulnerabilities** across its product portfolio, including **Windows**, **Azure**, and **Edge**. None of the flaws we...
Timeline
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11.03.2026 03:08 2 articles · 2mo ago
Microsoft March 2026 Patch Tuesday release
Initial DisclosureMicrosoft released patches for 83 CVEs across its product range in its March 2026 Patch Tuesday update, including six flaws Microsoft expects attackers are more likely to exploit. The release covers a near-maximum-severity RCE in Microsoft Devices Pricing Program that Microsoft says is already patched and mitigated, Windows kernel EoP issues, Office RCEs that can be abused through the Preview Pane, and chained GDI/GDI+ flaws that could enable arbitrary code execution. Security guidance emphasized patching after testing cycles and, if needed, disabling the Preview Pane, restricting untrusted Office files, and using email filtering, attachment scanning, and endpoint protection monitoring.
Show sources
- Microsoft Patches 83 CVEs in March Update — www.darkreading.com — 11.03.2026 03:08
- Microsoft Patches 83 CVEs in March Update — www.darkreading.com — 11.03.2026 03:08