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Every CyberSIXT summary, newest first, with a link to its story and to the original report.

Most articles on Wed 21 Oct (96); 9–13 on weekend days.

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Articles published per day
DayArticles published
Sun 11 Oct9
Mon 12 Oct56
Tue 13 Oct85
Wed 14 Oct86
Thu 15 Oct78
Fri 16 Oct61
Sat 17 Oct10
Sun 18 Oct10
Mon 19 Oct60
Tue 20 Oct86
Wed 21 Oct96
Thu 22 Oct84
Fri 23 Oct68
Sat 24 Oct13
Today, Sun 25 Oct9 so far
Exploited only
5 articles

Wed 9 Sep· 5 articles

  1. US Agencies Accuse Six Chinese AI Firms of Model Distillation

    US federal agencies have published an advisory alleging that six Chinese AI firms have conducted industrial-scale extraction campaigns against US frontier models to accelerate their own development. The joint alert from the NSA, CISA and the FBI names…

    Security Affairs
  2. Google Patches Chrome’s Seventh Zero Day of 2026 Under Attack

    Google has released a Chrome update to address a string of actively exploited vulnerabilities in 2026, including the seventh zero-day cased in the wild. The standout flaw is CVE-2026-87491, an out-of-bounds write in the V8 engine with a CVSS score of 8.8,…

    Security AffairsCVE-2026-87491CVE-2026-87491Exploited
  3. Fileless PoisonedRefresh Rootkit Targets F5 BIG-IP APM Systems

    SophosLabs published a technical analysis on 8 September 2026 describing PoisonedRefresh, a fileless Linux rootkit used against F5 BIG-IP APM environments. The rootkit operates in memory to inject a PHP web shell into the BIG-IP APM Apache process, leaving…

    Security AffairsCVE-2025-53521CVE-2025-53521Exploited
  4. ShieldCrash PoC Revives Microsoft Defender SYSTEM File Read Flaw

    Security researcher Chaotic Eclipse (INFINITE NIGHTMARE, MSNightmare, Nightmare-Eclipse) released a new zero-day exploit named ShieldCrash, a PoC that demonstrates an arbitrary file read as SYSTEM in Microsoft Defender. The PoC targets a vulnerability…

    Security AffairsCVE-2026-69414CVE-2026-69414
  5. Microsoft Fixes Nearly 1,000 Flaws in Record Patch Tuesday Update

    Microsoft’s September 2026 Patch Tuesday set another record, with Microsoft stating fixes for up to 974 CVEs across Windows, Exchange, SharePoint, SQL Server and other services. The update slate includes two zero-days exploited in the wild and 20 wormable…

    Security AffairsCVE-2026-85880CVE-2026-85880Exploited

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