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Microsoft Office Zero-Day (CVE-2026-21509) - Emergency Patch Issued for Active Exploitation

The Hacker NewsJan 27, 10:37 UTC · Jan 27, 2026Exploit / PoC in the wildCVE-2026-215091

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Emergency Microsoft update fixes in-the-wild Office zero

Security AffairsJan 26, 19:04 UTC · Jan 26, 2026Exploit / PoC in the wildCVE-2026-215091

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Macro Intruders: Sneaking Past Office Defenses

Cisco TalosAug 2, 13:42 UTC · Aug 2, 2016Exploit / PoC in the wild

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RSA Conference 2020 unveils keynote line-up with world-class experts

Help Net SecurityMay 12, 11:26 UTC · May 12, 2020Exploit / PoC in the wildCVE-2026-87491

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National Cyber Director Harry Coker looks back (and ahead) on the Cyber Director office

CyberScoopJan 8, 00:52 UTC · Jan 8, 2025Exploit / PoC in the wild

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U.S. CISA adds Microsoft Office, GNU InetUtils, SmarterTools SmarterMail, and Linux Kernel flaws to its Known Exploited Vulnerabilities catalog

Security AffairsJan 27, 14:54 UTC · Jan 27, 2026Exploit / PoC in the wildCVE-2018-14634 CVE-2025-52691 CVE-2026-21509+2 CVEs

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Zero-day bug exploited by attackers via macro-less Office documents (CVE-2022-30190)

Help Net SecurityMay 31, 00:00 UTC · May 31, 2022Exploit / PoC in the wildCVE-2022-30190 CVE-2021-40444

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Microsoft reveals actively exploited Office zero-day, provides emergency fix (CVE-2026-21509)

Help Net SecurityFeb 3, 18:36 UTC · Feb 3, 2026Exploit / PoC in the wildCVE-2026-21509

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Microsoft releases guidance for Office zero-day used to target orgs in Russia, India, Tibet

The RecordJan 13, 00:00 UTC · Jan 13, 2023Exploit / PoC CVE-2022-301901

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RSA Conference announces initial keynote speakers to address security topics and issues for 2022

Help Net SecurityDec 6, 00:00 UTC · Dec 6, 2021Exploit / PoC in the wildCVE-2026-87491

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DHS: Georgia incident was legitimate work, not a hack

CyberScoopDec 12, 15:53 UTC · Dec 12, 2016Exploit / PoC in the wild

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South Korea-linked group APT-C-60 exploited a WPS Office zero

Security AffairsAug 30, 11:09 UTC · Aug 30, 2024Exploit / PoC CVE-2924-7263

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U.S. CISA adds Draytek VigorConnect and Kingsoft WPS Office bugs to its Known Exploited Vulnerabilities catalog

Security AffairsSep 7, 16:19 UTC · Sep 7, 2024Exploit / PoC in the wildCVE-2021-20123 CVE-2021-20124 CVE-2024-7262

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Unpatched Office zero-day CVE-2023-36884 actively exploited in targeted attacks

Security AffairsJul 12, 07:39 UTC · Jul 12, 2023Exploit / PoC in the wildCVE-2023-36884

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DHS's top cyber office is about to get a name that reflects its mission

CyberScoopOct 4, 15:14 UTC · Oct 4, 2018Exploit / PoC in the wild

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Cyber diplomacy office at State Department would return under House

CyberScoopJan 17, 22:19 UTC · Jan 17, 2018Exploit / PoC in the wild

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An inspector general's office full of hackers? Two lawmakers say it's a good idea

CyberScoopJan 5, 22:18 UTC · Jan 5, 2017Exploit / PoC in the wild

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Copyright office criticizes AI ‘fair use’ before director’s dismissal

CyberScoopMay 13, 20:57 UTC · May 13, 2025Exploit / PoC in the wild

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Chinese Hackers Begin Exploiting Latest Microsoft Office Zero

The Hacker NewsJun 1, 10:00 UTC · Jun 1, 2022Exploit / PoC in the wildCVE-2022-301901

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Microsoft shared workarounds for the Microsoft Office Follina 0day

Security AffairsMay 31, 11:19 UTC · May 31, 2022Exploit / PoC CVE-2022-301901

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Spin Technology introduces a new solution for Microsoft Office 365 customers to identify risky applications

Help Net SecurityApr 14, 00:00 UTC · Apr 14, 2022Exploit / PoC1

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New 0-Day Attack Targeting Windows Users With Microsoft Office Documents

The Hacker NewsSep 8, 04:55 UTC · Sep 8, 2021Exploit / PoC in the wildCVE-2021-40444

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Pentagon office left military designs for body armor, vehicle gear open to hackers, watchdog finds

CyberScoopJul 7, 17:43 UTC · Jul 7, 2021Exploit / PoC in the wild

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Department of Energy would get new cybersecurity office under White House proposal

CyberScoopFeb 12, 22:57 UTC · Feb 12, 2018Exploit / PoC in the wild

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Microsoft plugs 56 vulns, including Office flaw exploited in attacks

Help Net SecurityJan 10, 00:00 UTC · Jan 10, 2018Exploit / PoC in the wildCVE-2018-0802 CVE-2017-11882 CVE-2018-0786+3 CVEs

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Tillerson to officially eliminate cyber coordinator office

CyberScoopAug 29, 20:43 UTC · Aug 29, 2017Exploit / PoC in the wild

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U.S. Copyright Office seeks changes to anti-piracy law derided by white

CyberScoopJun 27, 12:08 UTC · Jun 27, 2017Exploit / PoC in the wild

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⚡ Weekly Recap: Proxy Botnet, Office Zero-Day, MongoDB Ransoms, AI Hijacks & New Threats

The Hacker NewsFeb 15, 00:00 UTC · Feb 15, 2026Exploit / PoC in the wildCVE-2026-21509 CVE-2026-1281 CVE-2026-1340

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U.S. CISA adds Microsoft Office and Microsoft Windows flaws to its Known Exploited Vulnerabilities catalog

Security AffairsFeb 11, 07:37 UTC · Feb 11, 2026Exploit / PoC in the wildCVE-2026-21510 CVE-2026-21513 CVE-2026-21514+3 CVEs1

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U.S. CISA adds HPE OneView and Microsoft Office PowerPoint flaws to its Known Exploited Vulnerabilities catalog

Security AffairsJan 8, 10:43 UTC · Jan 8, 2026Exploit / PoC in the wildCVE-2009-0556 CVE-2025-371641

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Coker’s top priorities: Federal cohesion, cyber workforce, other ‘hard problems’

CyberScoopJul 18, 14:44 UTC · Jul 18, 2024Exploit / PoC in the wild

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Week in review: Macro-less Office documents zero-day bug, FluBot takedown, growing DDoS threats

Help Net SecurityJun 5, 00:00 UTC · Jun 5, 2022Exploit / PoC in the wildCVE-2022-30190 CVE-2022-261341

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Watch Out! Researchers Spot New Microsoft Office Zero

The Hacker NewsMay 30, 15:44 UTC · May 30, 2022Exploit / PoC CVE-2021-404441

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South Korean Spies Exploit WPS Office Zero

Infosecurity MagazineAug 28, 09:50 UTC · Aug 28, 2024Exploit / PoC CVE-2024-7262 CVE-2024-7263

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Don't miss these keynotes at RSAC 2019

Help Net SecurityFeb 8, 09:54 UTC · Feb 8, 2024Exploit / PoC in the wildCVE-2026-87491

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Microsoft Office versions impacted by an actively exploited zero

Security AffairsMay 30, 12:06 UTC · May 30, 2022Exploit / PoC in the wild

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Owl Cyber Defense opens new regional office in Abu Dhabi

Help Net SecurityJul 15, 00:00 UTC · Jul 15, 2021Exploit / PoC

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Dragos to open Saudi Arabia office, announces new funding round

CyberScoopNov 14, 23:41 UTC · Nov 14, 2018Exploit / PoC in the wild

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Rex Tillerson proposes new 'cyber bureau' at the State Department

CyberScoopFeb 7, 20:57 UTC · Feb 7, 2018Exploit / PoC in the wild

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Army launches new office to accelerate cyber weapon development

CyberScoopSep 1, 12:00 UTC · Sep 1, 2016Exploit / PoC in the wild

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