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

CISA has added the exploited SharePoint RCE zero-day vulnerability, identified as CVE-2026-58644, to its Known Exploited Vulnerabilities (KEV) catalog. This move emphasizes heightened concerns regarding cybersecurity threats related to Microsoft SharePoint, urging organizations to take immediate action to patch the vulnerability and enhance their defenses against potential exploits.

AI summary of the original article from The Hacker News, written automatically by a language model. Quotes, figures and names come from that article; check it before relying on a detail. Read the original · How summaries are made

CVE-2026-58644 coverage
Published (UTC)	Outlet	Headline
Wed 15 Jul · 14:23 UTC	SecurityWeek	CISA urges swift patching of SharePoint after zero day exploits
Thu 16 Jul · 17:37 UTC	CISA	CISA Adds Critical SharePoint Flaw CVE-2026-58644 to KEV
Thu 16 Jul · 18:39 UTC	CISA	CISA Adds Critical SharePoint Flaw CVE-2026-58644 to KEV
Fri 17 Jul · 04:50 UTC	SecurityOnline	CISA orders urgent patches for SharePoint, FortiSandbox flaws
Fri 17 Jul · 04:51 UTC	SecurityOnline	Red Hat OpenShift AI flaw lets attackers read local files
Fri 17 Jul · 07:40 UTC	The Hacker News	CISA Adds SharePoint Zero Day Exploit CVE-2026-58644 to KEV Catalog (this article)
Fri 17 Jul · 07:40 UTC	SecurityWeek	Critical SharePoint Flaw Exploited, CISA Urges Immediate Patching
Fri 17 Jul · 10:01 UTC	SecurityOnline	292 Fake GitHub Repositories Deliver BoryptGrab Infostealer to Windows Users
Fri 17 Jul · 20:26 UTC	Rapid7	Attackers exploit Critical SharePoint RCE flaw CVE-2026-58644
Sat 18 Jul · 10:01 UTC	SecurityOnline	Ubuntu Pro Client Flaw CVE-2026-11386 Allows Arbitrary Code Execution With Root Privileges
Sat 18 Jul · 12:51 UTC	Security Affairs	CISA urges patch of FortiSandbox, SharePoint flaws amid exploits
Tue 21 Jul · 22:56 UTC	Security Affairs	CVE-2026-50522: SharePoint Flaw Lets Site Owners Run Remote Code
Wed 22 Jul · 11:40 UTC	SecurityWeek	Fourth SharePoint Vulnerability Exploited in Past Month’s Wave of Attacks
Fri 2 Oct · 10:05 UTC	SecurityWeek	Warlock Ransomware Expands SharePoint Attacks Against Critical Sectors

CVE-2026-58644 coverage

Published (UTC)

Outlet

Headline

Wed 15 Jul · 14:23 UTC

SecurityWeek

CISA urges swift patching of SharePoint after zero day exploits

Thu 16 Jul · 17:37 UTC

CISA

CISA Adds Critical SharePoint Flaw CVE-2026-58644 to KEV

Thu 16 Jul · 18:39 UTC

CISA

CISA Adds Critical SharePoint Flaw CVE-2026-58644 to KEV

Fri 17 Jul · 04:50 UTC

SecurityOnline

CISA orders urgent patches for SharePoint, FortiSandbox flaws

Fri 17 Jul · 04:51 UTC

SecurityOnline

Red Hat OpenShift AI flaw lets attackers read local files

Fri 17 Jul · 07:40 UTC

The Hacker News

CISA Adds SharePoint Zero Day Exploit CVE-2026-58644 to KEV Catalog (this article)

Fri 17 Jul · 07:40 UTC

SecurityWeek

Critical SharePoint Flaw Exploited, CISA Urges Immediate Patching

Fri 17 Jul · 10:01 UTC

SecurityOnline

292 Fake GitHub Repositories Deliver BoryptGrab Infostealer to Windows Users

Fri 17 Jul · 20:26 UTC

Rapid7

Attackers exploit Critical SharePoint RCE flaw CVE-2026-58644

Sat 18 Jul · 10:01 UTC

SecurityOnline

Ubuntu Pro Client Flaw CVE-2026-11386 Allows Arbitrary Code Execution With Root Privileges

Sat 18 Jul · 12:51 UTC

Security Affairs

CISA urges patch of FortiSandbox, SharePoint flaws amid exploits

Tue 21 Jul · 22:56 UTC

Security Affairs

CVE-2026-50522: SharePoint Flaw Lets Site Owners Run Remote Code

Wed 22 Jul · 11:40 UTC

SecurityWeek

Fourth SharePoint Vulnerability Exploited in Past Month’s Wave of Attacks

Fri 2 Oct · 10:05 UTC

SecurityWeek

Warlock Ransomware Expands SharePoint Attacks Against Critical Sectors

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

Story timeline CVE-2026-58644

Sources

On this device

Intel

Settings

Keyboard shortcuts