Search: “Firefox”

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CategoryAll Vulnerability 454 Malware 431 Exploit / PoC 214 Ransomware 134 Data breach 74 Phishing & fraud 64 Threat actor 62 Industry 61 Policy & legal 44 AI tools & infra 20 Research 18 Tools 9 AI safety & security 7 Advisory 7

SeverityAll critical 587 high 389 medium 433 low 161 info 40

Mozilla will fix the cross-platform RCE flaw that threatened Tor anonymity

Security AffairsSep 18, 11:36 UTC · Sep 18, 2016Vulnerability

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Anthropic Finds 22 Firefox Vulnerabilities Using Claude Opus 4.6 AI Model

The Hacker NewsMar 7, 11:21 UTC · Mar 7, 2026Vulnerability CVE-2026-2796

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⚡ Weekly Recap: Hot CVEs, npm Worm Returns, Firefox RCE, M365 Email Raid & More

The Hacker NewsDec 2, 05:36 UTC · Dec 2, 2025Vulnerability CVE-2025-59287 CVE-2025-12972 CVE-2025-12970+17 CVEs1

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Tails OS Users Advised Not to Use Tor Browser Until Critical Firefox Bugs are Patched

The Hacker NewsMay 26, 09:08 UTC · May 26, 2022Vulnerability CVE-2022-1802 CVE-2022-1529

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Malicious Firefox Add-ons Block Browser From Downloading Security Updates

The Hacker NewsOct 26, 07:41 UTC · Oct 26, 2021Vulnerability

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Vulnerability Spotlight: Code execution vulnerability in Mozilla Firefox

Cisco TalosAug 10, 16:21 UTC · Aug 10, 2021Vulnerability in the wildCVE-2021-29985

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Vulnerability Spotlight: Remote code execution vulnerability in Firefox’s SharedWorkerService function

Cisco TalosJun 10, 14:00 UTC · Jun 10, 2020Vulnerability in the wildCVE-2020-12405

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Google and Mozilla address serious flaws in Firefox and Chrome browsers

Security AffairsApr 9, 15:30 UTC · Apr 9, 2020Vulnerability CVE-2020-6825 CVE-2020-6826 CVE-2020-6828+8 CVEs

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⚡ Weekly Recap: IoT Exploits, Wallet Breaches, Rogue Extensions, AI Abuse & More

The Hacker NewsJan 5, 12:56 UTC · Jan 5, 2026Vulnerability CVE-2025-55182 CVE-2025-13915 CVE-2025-52691+7 CVEs

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"0.0.0.0-Day" vulnerability affects Chrome, Safari and Firefox

Help Net SecurityAug 9, 00:00 UTC · Aug 9, 2024Vulnerability

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Researchers Uncover Flaws in Python Package for AI Models and PDF.js Used by Firefox

The Hacker NewsMay 21, 10:22 UTC · May 21, 2024Vulnerability CVE-2024-34359 CVE-2024-43671

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Friday Squid Blogging: New Squid Species Discovered in Australia

Schneier on SecurityJan 29, 08:02 UTC · Jan 29, 2020Vulnerability1

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Mozilla will block Firefox add-ons that contain obfuscated code

Help Net SecurityMay 6, 05:21 UTC · May 6, 2019Vulnerability

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Firefox vulnerability allowing for arbitrary code execution is fixed

CyberScoopJan 31, 14:34 UTC · Jan 31, 2018Vulnerability

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Mozilla, CISA urge users to patch Firefox security flaw

The RecordSep 14, 20:46 UTC · Sep 14, 2023Vulnerability in the wildCVE-2023-4863 CVE-2023-41064

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A new way for securing web browsers from hackers

Help Net SecurityMar 1, 13:57 UTC · Mar 1, 2020Vulnerability

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Mythos Preview can weaponize N-day vulnerabilities in hours

Help Net SecurityJun 9, 00:00 UTC · Jun 9, 2026Vulnerability

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Recently-patched Firefox bug exploited against Tor browser users

The RecordOct 14, 14:14 UTC · Oct 14, 2024Vulnerability in the wildCVE-2024-9680

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July 2021 Patch Tuesday: Microsoft fixes 4 actively exploited bugs

Help Net SecurityJul 13, 00:00 UTC · Jul 13, 2021Vulnerability in the wildCVE-2021-34527 CVE-2021-34448 CVE-2021-33771+6 CVEs

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CNAME-based tracking increasingly used to bypass browsers' anti-tracking defenses

Help Net SecurityMar 5, 13:03 UTC · Mar 5, 2021Vulnerability

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Windows 10, iOS, Chrome, Firefox and Others Hacked at Tianfu Cup Competition

The Hacker NewsNov 9, 07:59 UTC · Nov 9, 2020Vulnerability

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Mozilla offers bigger rewards for Firefox flaws under bug bounty program

Security AffairsApr 24, 08:00 UTC · Apr 24, 2020Vulnerability

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COMpfun successor Reductor infects files on the fly to compromise TLS traffic

Kaspersky SecurelistOct 3, 10:00 UTC · Oct 3, 2019Vulnerability

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Chrome, Firefox, Edge and Safari Plans to Disable TLS 1.0 and 1.1 in 2020

The Hacker NewsOct 15, 00:00 UTC · Oct 15, 2018Vulnerability

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November Patch Tuesday forecast: .NET, Adobe, Firefox and more

Help Net SecurityNov 13, 00:00 UTC · Nov 13, 2017Vulnerability

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Adobe Incubates Flash Runtime for Firefox

Kaspersky SecurelistFeb 7, 23:46 UTC · Feb 7, 2012Vulnerability

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Rule release for today

Cisco TalosJul 15, 23:01 UTC · Jul 15, 2009Vulnerability

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Update Chrome Now: Google Releases Patch for Actively Exploited Zero

The Hacker NewsOct 10, 05:14 UTC · Oct 10, 2023Vulnerability in the wildCVE-2023-5217 CVE-2023-2033 CVE-2023-2136+4 CVEs1

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Google and Mozilla fixed issues exploited at 2020 Tianfu Cup contest

Security AffairsNov 11, 19:04 UTC · Nov 11, 2020Vulnerability CVE-2020-16016 CVE-2020-26950

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Faking Domain Names with Unicode Characters

Schneier on SecurityJan 29, 08:02 UTC · Jan 29, 2020Vulnerability

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Adobe Flash end of life announced by 2020. Start thing of the migration

Security AffairsJul 26, 05:05 UTC · Jul 26, 2017Vulnerability

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For the second time in the year, experts found a flaw in Cisco WebEx Extension

Security AffairsJul 17, 20:23 UTC · Jul 17, 2017Vulnerability CVE-2017-6753

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Vulnerabilities in LastPass allowed attackers to steal passwords

Security AffairsMar 22, 14:03 UTC · Mar 22, 2017Vulnerability

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Google is winding up Gmail support for older Chrome versions

Help Net SecurityFeb 6, 00:00 UTC · Feb 6, 2017Vulnerability

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Fire, fire(fox)!

Kaspersky SecurelistMay 13, 16:55 UTC · May 13, 2005Vulnerability

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May 2026 Patch Tuesday forecast: AI starts driving security industry changes

Help Net SecurityMay 12, 19:03 UTC · May 12, 2026Vulnerability CVE-2026-40372 CVE-2026-33825 CVE-2026-314311

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Patch Tuesday, January 2026 Edition

Krebs on SecurityJan 15, 00:00 UTC · Jan 15, 2026Vulnerability in the wildCVE-2026-20805 CVE-2026-20952 CVE-2026-20953+6 CVEs1

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April 2025 Patch Tuesday forecast: More AI security introduced by Microsoft

Help Net SecurityApr 4, 00:00 UTC · Apr 4, 2025Vulnerability

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February 2025 Patch Tuesday forecast: New directions for AI development

Help Net SecurityFeb 10, 00:00 UTC · Feb 10, 2025Vulnerability in the wildCVE-2025-21418 CVE-2025-21391 CVE-2025-24085

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January 2025 Patch Tuesday forecast: Changes coming in cybersecurity guidance

Help Net SecurityJan 14, 21:03 UTC · Jan 14, 2025Vulnerability in the wildCVE-2024-49138 CVE-2024-49113 CVE-2024-491121

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