# CISA alerts of active exploitation of three Linux kernel flaws

> **Newsylist Open Intelligence Dossier** · First detected: 2026-09-23 15:29 UTC · Category: Technology · Sources: 5 · Current Velocity: 2.8

## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| CyberSecurityNews | CISA Warns of Linux Kernel Vulnerabilities Actively Exploited in Attacks | 2026-09-21 20:12 | [Source Link](https://news.google.com/rss/articles/CBMihAFBVV95cUxQWGtnN0RleDR6YXZoU2NxLW5Qa1FBeFp6WkxIWW5oaWZob0Y5NzdScVAxcXVMUG42OEdNdzlxLUtENHlFRGp5Mlc4U1g3YTctdDBZLVZCRDZmZ3F6UnZhanRLTFhlSjNua3VKVkM5ZUtBdmlVZ0E1UVRJNUFRMC1odklpOGPSAYoBQVVfeXFMT0R1clExQ2psaGdvQndXbk8teTJuUVhXZ1BkVVJ5cms1RndsVEllcWwySkR0YUczSVlXa21OVER3b2QyM0VOSERnVjE0YVItcFU4WEoyS0owZzR4eWtJQUF6eVdsanY3U0UtREhFTThNdkNsYUtQY0ZaQlpxTU9KYWhPeURVd0pjSDZR?oc=5) |
| forkast.news | 732 Bytes to Root: Copy Fail Turns the Kernel’s Crypto Subsystem Against Itself | 2026-09-21 20:12 | [Source Link](https://news.google.com/rss/articles/CBMioAFBVV95cUxPaG9vZzRtd09UT3k3TTRqRkhfb2JEUDgwY3RSVmswUDRJQmVGb3ZFSlN1bVRENFJqM3U5YWJBeWJTNjJPQXMzbmxqVzJCUnRXWnJvRC1tOHhQUUhSWDhuTFlaTGtTc1RwTWVyOFF1MjF0VDB5QzBrTXpqRUpDZGlHdGJpVGw4SktqQzJiVVlYbFk0d1E4WHV6cENnVkczcUs1?oc=5) |
| SecurityWeek | Organizations Warned of 3 Exploited Linux Kernel Vulnerabilities | 2026-09-21 20:12 | [Source Link](https://news.google.com/rss/articles/CBMimgFBVV95cUxOM3JTcXg4d0hQUFB2Q0N3MFc2ZWVqZlhxVENBbGphYUdkTkt6QTNzZWlOOU8zdWJ6MnFLM1hnMDFlbG5lb1dtRlhUN3Z6dDh5LXlSU0xyc3VMaElPOFNIRkFGZkF6NEo4SFU2RlFIakV5elNPYU5TOEQzdi1FRHRqU2R0cC1pbkNsS0RmUmotQUkzSUQ5ZGVfRUNR0gGfAUFVX3lxTE9ZZFJSUlptanUzODU0ZFZSdUFMSnhkWUxxdEdYZE9PSHhoSFcxZWQ3XzQySEdsNVlqRktiWVRHeFo1LVdOSUlhSE1MUUFPT2x3Sl9UcllxM1RKeWM0NVluN2xhU2UxYi1iejVxa0k3aXZSZWgyZlVoRjlLTFlQMHF3eEYyVVI3dFBGLWVqSmVIMVlOeFRIVWpVVlRsOUg1VQ?oc=5) |
| thehackernews.com | Public Exploits Released for Four Linux Kernel Flaws That Enable Local Root | 2026-09-21 20:12 | [Source Link](https://news.google.com/rss/articles/CBMihAFBVV95cUxQb2xtQ0k0YV96ODhUOWFCMWlLaWhOTnhmbHpBLWpvZzFvZzBpai1fNDk3YXhtdmRaVi13QmdQLW9IZVhGS21oSHhWVmhCYkJnTF9TQU96UGVGNXQ3NG9EY0dlSnlmd0dnRHNObEJFY2hTMlhjLTFvcm82RDhtbDNUMEhCUEg?oc=5) |
| BleepingComputer | CISA alerts of active exploitation of three Linux kernel flaws | 2026-09-21 20:12 | [Source Link](https://news.google.com/rss/articles/CBMirwFBVV95cUxNVXZQM2VHVmpqX1Brcml5MGk2SHFJdDV2VkkzcGdvaDBXVEZlSmNfRlpZQ3ZULWtqMk4weXduSV9PNzZBV3NOajExaWdOQ0FRWXpTRXdieWxfZ2FqcFFNWThjSDRQSlVEWEtrNERRTlljWmJzcG1DZmowNmM3c2dyM2Y4Vi1odWQ2WXFaX0xycDlQZmNGbXpJbHI2aE9RcU9PYlhXMXNkeWVKelBsOHZj0gG0AUFVX3lxTE9mM0RObjU1T01MWl9uZ084cXZxQ0lvT2lEQVFyTVpxcVpGTzNidWNyZ2x5by1NdHNCSndVMllnbkM1bmg1ZmxETzZ3bmdLZHRXZ3FtU0RPX2FJUDRnUWU2RjVRRHd3WE9nU0dwUG12Zm5JbXdKN2l4Xy1oMFlyTjRNQXV2OW9wTVZXb2NBWnBnMUhCVFBhMnVzTTNSVGJVaDgyZ3I) |

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*Canonical Source: https://www.newsylist.com/trend/2026-09-23/cisa-alerts-of-active-exploitation-of-three-linux-kernel-flaws*
*Synthesized by Newsylist Open Intelligence Engine under E-E-A-T journalistic standards.*