# CISA warns admins to patch actively exploited SharePoint flaws

> **Newsylist Open Intelligence Dossier** · First detected: 2026-07-15 19:29 UTC · Category: Technology · Sources: 3 · Current Velocity: 1.3

## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| The Hacker News | CISA Adds Exploited SharePoint RCE Zero-Day CVE-2026-58644 to KEV | 2026-07-15 09:44 | [Source Link](https://news.google.com/rss/articles/CBMihAFBVV95cUxOZGJwSVBuSnlYN0stdzlQdGlyeURSSkRQLXBrREpFb2tmaTdLeXZORHNpUjNFcXE1amVDdGVXR2FvSV9vU2kxekZOSWU3MkZORk1YQzhyY1ktRFNNTEVmTXd0NEdXVWdfa2NNOXRJYXd2cDktMjNlS0wzNVNEdWdNQ0JkM1k?oc=5) |
| csoonline.com | CISA urges immediate SharePoint hardening as exploits mount | 2026-07-15 09:44 | [Source Link](https://news.google.com/rss/articles/CBMiqgFBVV95cUxNc3BCUnNYbUg3TEZtMmtzVGNrRTZ6dldnazhJWU1Md0toRmx0WnB0a3VDMS1qVUE0eHpWWkRuZ0QxTm5iMzJtMFNpcUNDYUdURDB4ZGZfYlp1WXhyd0k1cFlnUVIwWl9nNmN5UWctbUgzUEViSkg2NjVoTVgxdS1MZmRVWkZ5SGpPTG9EMDYyMHp2MnJnOFdxeHFJcEFpYXd0dkJGMG5fbzJLZw?oc=5) |
| SC Media | CISA warns that three SharePoint Server bugs are actively exploited | 2026-07-15 09:44 | [Source Link](https://news.google.com/rss/articles/CBMilwFBVV95cUxNUWo1ZW44elRQeEpHZUt5b3BmQUdJQUNfRHRMZm9SblFvMHlHdUpCVjFkRmhIOGFHTWpKWUlVZE5COER6QzhhSE52NXVrMDhoWlNDc0s1SU9pM0JNZURyTXIxdG9TalJ6Tl96OXBLYk1ubklJWXo4T3VrMWpVWk5wZjZQTndLbnMzUTVDU29hXzU0WkxFUFJz?oc=5) |

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*Canonical Source: https://www.newsylist.com/trend/2026-07-15/cisa-warns-admins-to-patch-actively-exploited-sharepoint-flaws*
*Synthesized by Newsylist Open Intelligence Engine under E-E-A-T journalistic standards.*