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CVEs

CVE-2026-45659

exploited in the wild☆ pin
CVSS
8.8
Reports
16
First seen
May 22, 2026
Last seen
Aug 12, 2026
Affected product

Microsoft SharePoint

Associated actors

bandcampro ×1BlackSuit ×1GlassWorm ×1GREYVIBE ×1Payload ×1Storm-2603 ×1

Recent reports

High

Hackers leverage new Microsoft SharePoint exploit in attacks

Bleeping ComputerHigh

CISA: Microsoft SharePoint flaw now exploited in ransomware attacks

Bleeping ComputerCritical

Critical SharePoint RCE CVE-2026-50522 Under Active Exploitation After Public PoC

The Hacker NewsCritical

CISA Adds Exploited SharePoint RCE Zero-Day CVE-2026-58644 to KEV Catalog

The Hacker NewsHigh

Researcher Releases Windows Zero-Day PoC After Microsoft Patch Tuesday; SharePoint Flaws Actively Exploited

The Hacker NewsCritical

CISA warns admins to patch actively exploited SharePoint flaws

Bleeping ComputerHigh

CISA Urges SharePoint Hardening After New Exploitations

CISA AdvisoriesCritical

Critical vulnerability impacting Microsoft SharePoint Server – CVE-2026-45659

Canadian Centre AlertsHigh

CISA: Microsoft SharePoint RCE flaw now actively exploited

Bleeping ComputerHigh

SharePoint RCE CVE-2026-45659 Added to CISA KEV After Active Exploitation

The Hacker NewsCritical

CISA Adds Microsoft SharePoint Deserialization Vulnerability to KEV Catalog

CISA AdvisoriesHigh

Microsoft SharePoint High-Risk Insecure Deserialization Vulnerability (CVE-2026-45659)

NICS TaiwanHigh

Weekly Cyber Recap: PAN-OS Exploit, Gogs RCE, GlassWorm C2 Takedown, AI-Driven Attacks

The Hacker NewsHigh

Microsoft Security Advisory – May 2026 Monthly Rollup (AV26-456) Update 1

Canadian Centre AlertsHigh

Microsoft Patches SharePoint RCE Flaw CVE-2026-45659 Across Server Versions

The Hacker NewsHigh

Multiple Vulnerabilities in Microsoft Products (A26-05-41)

GovCERT.HK

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