Tag: zero-day
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The zero-day timeline just collapsed. Here’s what security leaders do next
Tags: access, ai, api, attack, authentication, breach, cio, ciso, control, cyber, cybersecurity, data, data-breach, defense, endpoint, exploit, google, Internet, Intruder, leak, least-privilege, open-source, penetration-testing, resilience, service, strategy, tactics, update, vulnerability, zero-dayScaling vulnerability discovery to machine speed: Agentic AI is AI that can act, not just advise. Give it an objective, and it will plan steps, run them, learn from what happens and adjust until it succeeds or hits a hard stop. In cybersecurity, that looks like an automated operator. It can probe an application, test…
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Anthropic’s Claude Mythos Finds Thousands of Zero-Day Flaws Across Major Systems
Artificial Intelligence (AI) company Anthropic announced a new cybersecurity initiative called Project Glasswing that will use a preview version of its new frontier model, Claude Mythos, to find and address security vulnerabilities.The model will be used by a small set of organizations, including Amazon Web Services, Apple, Broadcom, Cisco, CrowdStrike,& First seen on thehackernews.com Jump…
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Anthropic’s new AI model finds and exploits zero-days across every major OS and browser
Automated vulnerability discovery tools have existed for decades, and the gap between finding a bug and building a working exploit has always slowed attackers. That gap is now … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/04/08/anthropic-claude-mythos-preview-identify-vulnerabilities/
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Anthropic: All your zero-days are belong to Mythos
Hasn’t released it to the public, because it would break the internet – in a bad way First seen on theregister.com Jump to article: www.theregister.com/2026/04/07/anthropic_all_your_zerodays_are_belong_to_us/
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Fortinet releases emergency hotfix for FortiClient EMS zero-day flaw
Mitigation and response: In addition to the hotfix, organizations should review their available logs for any suspicious API requests and activity. Unfortunately, there are no published indicators of compromise for this malicious activity yet, so watchTowr recommends auditing all recent changes made to endpoint security policies, VPN configuration profiles, application firewall rules, administrator accounts and…
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Storm-1175 Deploys Medusa Ransomware at ‘High Velocity’
Microsoft says the financially motivated cybercrime group has exploited N-day and zero-day vulnerabilities in campaigns predicated on speed. First seen on darkreading.com Jump to article: www.darkreading.com/threat-intelligence/storm-1175-medusa-ransomware-high-velocity
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Supply chain security is now a board-level issue: Here’s what CSOs need to know
Tags: access, android, attack, automation, best-practice, compliance, cybersecurity, edr, encryption, firewall, firmware, flaw, infrastructure, linux, mitigation, regulation, risk, sbom, software, supply-chain, switch, threat, tool, update, vulnerability, windows, zero-dayThe hidden complexity that drowns security teams: SBOMs are no longer used solely to track software licensing; they are key to managing supply chain security as they enable the identification and tracking of vulnerabilities across ecosystems.Finding a problem is just the start, you need to determine if the vulnerability affects your implementation. For example, if…
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Fortinet Releases Emergency Patch After FortiClient EMS Bug Is Exploited
Fortinet has updated its FortiClient EMS product after zero-day attacks surfaced First seen on infosecurity-magazine.com Jump to article: www.infosecurity-magazine.com/news/fortinet-emergency-patch-ems-bug/
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Experts published unpatched Windows zero-day BlueHammer
A researcher leaked the unpatched Windows zero-day “BlueHammer,” letting attackers gain SYSTEM rights; no patch exists yet. A disgruntled researcher released the BlueHammer Windows zero-day, a privilege escalation flaw that allows attackers to gain SYSTEM or admin rights, Bleeping Computer reports. The researcher privately reported the vulnerability to Microsoft but criticized the waythe Microsoft’s Security…
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China-Linked Storm-1175 Exploits Zero-Days to Rapidly Deploy Medusa Ransomware
A China-based threat actor known for deploying Medusa ransomware has been linked to the weaponization of a combination of zero-day and N-day vulnerabilities to orchestrate “high-velocity” attacks and break into susceptible internet-facing systems.”The threat actor’s high operational tempo and proficiency in identifying exposed perimeter assets have proven successful, with recent First seen on thehackernews.com Jump…
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Zoff mit Microsoft: Frustrierter Forscher leakt Zero-Day-Exploit für Windows
Ein Forscher fühlt sich offenbar von Microsoft nicht ernst genommen. Aus Frust hat er einen Exploit-Code für eine ungepatchte Windows-Lücke geleakt. First seen on golem.de Jump to article: www.golem.de/news/zoff-mit-microsoft-frustrierter-forscher-leakt-zero-day-exploit-fuer-windows-2604-207270.html
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CISA Alerts Defenders to Actively Exploited Fortinet Zero-Day Vulnerability
Tags: cisa, cyber, cybersecurity, exploit, flaw, fortinet, infrastructure, kev, threat, vulnerability, zero-dayThe Cybersecurity and Infrastructure Security Agency (CISA) has issued an urgent warning regarding a critical zero-day vulnerability in Fortinet products. The agency officially added the flaw to its Known Exploited Vulnerabilities (KEV) catalog on April 6, 2026, indicating that threat actors are actively exploiting it in the wild. The CISA KEV catalog serves as a…
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Windows Defender 0-Day Published Online, Giving Attackers Potential Full Access
A newly discovered zero-day vulnerability, dubbed >>BlueHammer,<< has been publicly disclosed. The flaw, which has been linked to Windows Defender, allows attackers to achieve Local Privilege Escalation (LPE) and potentially gain full administrative access to compromised systems. Because a patch is not yet available from Microsoft, this public release leaves Windows users temporarily exposed to…
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Fortinet customers confront actively exploited zero-day, with a full patch still pending
Two critical defects in FortiClient EMS have been exploited in the past couple weeks. Experts push for users to apply an immediate hotfix. First seen on cyberscoop.com Jump to article: cyberscoop.com/fortinet-forticlient-ems-zero-day-cve-2026-35616-hotfix-known-exploited/
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Fortinet Issues Emergency Patch for FortiClient Zero-Day
The authentication bypass flaw, tracked as CVE-2026-35616, is the latest in a series of Fortinet vulnerabilities that have been exploited in the wild. First seen on darkreading.com Jump to article: www.darkreading.com/vulnerabilities-threats/fortinet-emergency-patch-forticlient-zero-day
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Fortinet Issues Emergency Patch for FortiClient Zero-Day
The authentication bypass flaw, tracked as CVE-2026-35616, is the latest in a series of Fortinet vulnerabilities that have been exploited in the wild. First seen on darkreading.com Jump to article: www.darkreading.com/vulnerabilities-threats/fortinet-emergency-patch-forticlient-zero-day
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Medusa ransomware group using zero-days to launch attacks within 24 hours of breach, Microsoft says
Microsoft said it has been alarmed to see how effective Medusa actors are, citing multiple cases where the group can move from initial access to data exfiltration and ransomware deployment within 24 hours. First seen on therecord.media Jump to article: therecord.media/medusa-ransomware-group-zero-days-microsoft
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Disgruntled researcher leaks “BlueHammer” Windows zero-day exploit
Exploit code has been released for an unpatched Windows privilege escalation flaw reported privately to Microsoft, allowing attackers to gain SYSTEM or elevated administrator permissions. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/disgruntled-researcher-leaks-bluehammer-windows-zero-day-exploit/
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Attackers exploited this critical FortiClient EMS bug as a 0-day
CISA added the flaw to KEV after Fortinet confirmed exploitation in the wild First seen on theregister.com Jump to article: www.theregister.com/2026/04/06/forticlient_ems_bug_exploited/
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CVE-2026-35616: Fortinet FortiClientEMS improper access control vulnerability exploited in the wild
Exploitation has been observed for CVE-2026-35616, a critical improper access control zero-day vulnerability affecting Fortinet FortiClientEMS devices. Key takeaways: CVE-2026-35616, an improper access control vulnerability, has been exploited in the wild as a zero-day. Public exploit code has been identified and Fortinet products have a long history of targeting by malicious actors. Hotfixes have been…
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Attackers Target Zero-Day Flaw in Fortinet Security Software
Vendor Issues Hotfix for Critical Flaw in FortiClient Endpoint Management Server. Fortinet’s endpoint management security server software is under fire from attackers, who are actively targeting two critical flaws, including a fresh zero-day that facilitates unauthenticated remote code or command execution. The vendor has issued a hotfix and promised a full patch. First seen on…
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Microsoft links Medusa ransomware affiliate to zero-day attacks
Microsoft says that Storm-1175, a China-based financially motivated cybercriminal group known for deploying Medusa ransomware payloads, has been deploying n-day and zero-day exploits in high-velocity attacks. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/microsoft-links-medusa-ransomware-affiliate-to-zero-day-attacks/
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âš¡ Weekly Recap: Axios Hack, Chrome 0-Day, Fortinet Exploits, Paragon Spyware and More
This week had real hits. The key software got tampered with. Active bugs showed up in the tools people use every day. Some attacks didn’t even need much effort because the path was already there.One weak spot now spreads wider than before. What starts small can reach a lot of systems fast. New bugs, faster…
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Chinesische APT nutzt CitrixDay – Salt Typhoon: Systematischer und verdeckter Angriff
First seen on security-insider.de Jump to article: www.security-insider.de/salt-typhoon-systematischer-und-verdeckter-angriff-a-ce0e527281b7bb9a75b4623a5d628bb0/
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FortiClient EMS zero-day exploited, emergency hotfixes available (CVE-2026-35616)
Defused Cyber has spotted a critical Fortinet FortiClient Endpoint Management Server (EMS) zero-day vulnerability (CVE-2026-35616) being exploited in the wild. This time … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/04/04/forticlient-ems-zero-day-cve-2026-35616/
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Cisco fixes critical IMC auth bypass present in many products
Tags: access, ai, api, apt, attack, authentication, cisco, computing, credentials, cybersecurity, dns, email, exploit, firewall, firmware, flaw, group, infrastructure, linux, malicious, monitoring, network, password, ransomware, risk, router, vulnerability, zero-day[ Related: More Cisco news and insights ] The Cisco IMC is a baseboard management controller (BMC), a dedicated controller embedded into server motherboards with its own RAM and network interface that gives administrators monitoring and management capabilities as if they were physically connected to the server with a keyboard, monitor, and mouse (KVM). Because BMCs run…
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Breach Roundup: Feds Confirm ‘Major’ Hack of FBI System
Also, Lloyds Data Leak, Dutch Treasury Breach, Citrix Bug Exploit, Pay2Key Activity. This week, Lloyds data leak hits 450K, Dutch treasury breach, Citrix flaw exploited, Iran-linked ransomware ops, TrueConf zero-day, Russian fraud ring sentenced, Romania targeted, patch gaps persist, and U.S. hospital breach affects 257K. First seen on govinfosecurity.com Jump to article: www.govinfosecurity.com/breach-roundup-feds-confirm-major-hack-fbi-system-a-31329