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CVEs

CVE-2026-56164

exploited in the wild☆ pin
CVSS
5.3
Reports
21
First seen
Jul 14, 2026
Last seen
Aug 26, 2026
Affected product

Microsoft SharePoint Server

Associated actors

Blind Eagle ×1CylindricalCanine ×1GoldenEyeDog ×1INC Ransom ×1Qilin ×1ShinyHunters ×1The Gentlemen ×1UTA0533 ×1World Leaks ×1

Recent reports

Critical

Hackers target Microsoft SharePoint RCE chain with PoC exploit

Bleeping ComputerHigh

Swiss Government SharePoint Breach Compromised 200 Accounts

Bleeping ComputerHigh

Microsoft Releases July 2026 Security Updates—628 Vulnerabilities Patched

NICS TaiwanCritical

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

The Hacker NewsCritical

Weekly Recap: WordPress RCE, SonicWall 0-Days, AI Service Attacks, SharePoint 0-Day

The Hacker NewsHigh

Check Point Threat Intelligence Report – 20 July 2026

Check Point ResearchCritical

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

The Hacker NewsCritical

Critical vulnerabilities in Microsoft SharePoint Server – CVE-2026-56164, CVE-2026-55040, CVE-2026-58644

Canadian Centre AlertsHigh

Microsoft releases record 622 patches in July; two SharePoint and AD flaws exploited in wild

The Record (Recorded Future News)High

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

Microsoft Releases July 2026 Security Updates; Two CVEs Exploited in the Wild

JPCERT/CC AlertsHigh

Microsoft July 2026 Security Updates: Multiple Vulnerabilities with Active Exploitation

GovCERT.HKHigh

Microsoft Monthly Security Update July 2026

HKCERTCritical

Microsoft Patch Tuesday July 2026: 622 Vulnerabilities Including 57 Critical RCE Flaws

Cisco TalosHigh

Microsoft Patches Record 622 Flaws in July; Two Zero-Days Under Active Attack

The Hacker NewsHigh

Microsoft discloses record 622 vulnerabilities in July Patch Tuesday

CyberScoopHigh

Microsoft security advisory – July 2026 monthly rollup (AV26-698)

Canadian Centre AlertsHigh

Microsoft Patches Record 570 Security Flaws; AI Accelerates Vulnerability Discovery

KrebsOnSecurityHigh

CISA Urges SharePoint Hardening After New Exploitations

CISA AdvisoriesHigh

CISA Adds Four Known Exploited Vulnerabilities to Catalog

CISA Advisories

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