Tag: zero day
368 articles
CISA Mandates Patching of Exploited BlueHammer Flaw in Federal Systems
Don't let your federal systems become an easy target: CISA is mandating the patching of the exploited BlueHammer flaw to prevent malicious cyber actors from gaining a foothold. A high-severity vulnerability in Microsoft Defender can allow low-privileged users to gain SYSTEM permissions - but a patch is available.
Anthropic's Mythos Model Exposes Limited Capabilities
Anthropic's highly anticipated Mythos model, designed to proactively identify vulnerabilities, has been compromised - with a small group of individuals reportedly gaining unauthorized access to the preview through a third-party vendor environment. The incident has raised concerns about the model's limited capabilities to protect itself from exploitation.
Terrarium Sandbox Flaw Enables Code Execution, Container Escape
A critical flaw in Terrarium's sandbox, rated 9.3 on the CVSS scale, allows attackers to break free from container constraints and execute code with root privileges. This alarming vulnerability, tracked as CVE-2026-5752, stems from a JavaScript prototype chain traversal that lets sandboxed code run amok on the host Node.js process.
Unpatched SharePoint Servers Exposed to Ongoing Spoofing Attacks
Over 1,300 Microsoft SharePoint servers are still vulnerable to a spoofing attack, despite a security update being available since last week, leaving them exposed to ongoing exploitation by hackers. This comes after Microsoft warned that the CVE-2026-32201 vulnerability was exploited as a zero-day, and attackers are continuing to abuse it in widespread campaigns.
Stolen Credentials Empower Attackers in Identity-Based Breaches
While security teams obsess over complex threats, attackers often find it easier to simply walk in with stolen credentials - the quickest and most reliable way into networks. By focusing on sophisticated threats, we might be overlooking the front door, which is wide open with a copy of the keys in the wrong hands.
AI Models Turbocharge Vulnerability Discovery
Imagine a world where AI models don't just help find software bugs, but actually behave like expert security researchers - that's the reality we're facing, and it's changing the vulnerability discovery game. Frontier AI models are now capable of autonomously discovering zero-day vulnerabilities and speeding up patching processes.
CISA Warns of Active Exploits in Apache ActiveMQ Vulnerability
A 13-year-old vulnerability in Apache ActiveMQ has suddenly become a pressing concern, prompting the Cybersecurity and Infrastructure Security Agency (CISA) to issue an urgent directive for federal agencies to patch the flaw within two weeks. Attackers are already exploiting this long-dormant vulnerability, making swift action a critical priority.
Microsoft Defender Zero-Days Exploited in Active Attacks
Microsoft's top security tool, Defender, has been turned against itself: hackers are exploiting three newly discovered flaws to gain elevated access to already compromised systems, forcing a major rethink of what we thought was safe. This alarming development has defenders, users, and policymakers scrambling to reassess their security assumptions.
CISA Warns of Active Exploitation of Apache ActiveMQ Flaw
A high-severity vulnerability in Apache ActiveMQ, hidden for 13 years, is now being actively exploited by attackers just days after a patch was released, putting organizations that rely on the software at risk. The Cybersecurity and Infrastructure Security Agency (CISA) has issued a warning, urging companies to take immediate action to protect themselves.
Leaked Windows Zero-Days Exploited in Targeted Attacks
Cyber attackers are exploiting newly disclosed Windows flaws in targeted attacks, allowing them to gain alarming levels of system control before organizations can patch the vulnerabilities. This alarming window of opportunity leaves defenders scrambling to respond.
Microsoft Defender Zero-Day Exploit Grants SYSTEM Privileges
A security researcher, known as Chaotic Eclipse, has taken a bold stand against Microsoft's approach to working with cybersecurity experts by releasing a proof-of-concept exploit, dubbed RedSun, that grants SYSTEM privileges and exposes a zero-day vulnerability in Microsoft Defender. This dramatic move sparks renewed debate about disclosure, access, and the complex relationship between researchers and tech giants.
Mythos Threat Looms Over Cyber Defenses
A new force in cyberspace, known as Claude Mythos, threatens to revolutionize the speed at which cyber defenses are compromised, dramatically shortening the window between vulnerability discovery and exploitation. Experts warn that this emerging threat could upend traditional cybersecurity strategies, making it essential for organizations to reassess their approach to managing vulnerabilities and security operations.
Zero-Day Exploits Multiply as Hacker Creativity Surges
Feeling overwhelmed by the endless stream of cybersecurity threats? Every Thursday morning, you're faced with a daunting question: how to stay informed without getting bogged down by a never-ending parade of old and new threats.
Nginx Flaw Exploited for Server Takeovers
A critical vulnerability in Nginx UI's Model Context Protocol (MCP) support is being actively exploited, allowing attackers to take over servers without any authentication. If your organization exposes Nginx UI with MCP support, your servers may be at risk of a full takeover.
AI-Driven Vulnerability Risks Expose Security Teams to Reality Check
The AI-driven vulnerability landscape just got a harsh reality check: with AI-powered tools like Anthropic's Claude Mythos speeding up vulnerability discovery, security teams are facing a daunting new challenge - keeping up with the rapid pace of exploit development. The real question is, are defenders ready to respond?
nginx-ui Flaw Enables Full Server Takeover via Active Exploits
A single flaw in nginx-ui, a popular open-source management tool for Nginx, has been actively exploited, allowing attackers to seize control of your server with ease. This critical authentication bypass vulnerability, tracked as CVE-2026-33032, has been rated extremely severe with a CVSS score of 9.8.
Microsoft Patch Tuesday Update Rectifies Zero-Day Flaws
This April's Patch Tuesday update from Microsoft is a critical one, bundling fixes for not one, but two zero-day flaws alongside over 160 other vulnerabilities, giving organizations and users a pressing decision: apply quickly or risk potential disruptions. By applying these patches, you can significantly reduce your exposure to cyber threats.
Microsoft Patch Tuesday Disrupts 169 Vulnerabilities, Including Exploited SharePoint Flaw
Microsoft's latest Patch Tuesday update is a doozy, addressing a record 169 security flaws across its product lineup - including a critical SharePoint zero-day that's already being exploited in the wild. With nearly 9 out of 10 fixes rated as Important or Critical, organizations are under pressure to patch quickly and avoid leaving themselves vulnerable.
Microsoft Discloses Actively Exploited Zero-Day Flaw in SharePoint
Microsoft just revealed a critical vulnerability in SharePoint that's being actively exploited by attackers, allowing them to access and modify sensitive information. Patch now to protect your organization from potential breaches.
Microsoft Rushes Fixes for 167 Vulnerabilities Amid Zero-Day Exploits
Microsoft just rolled out urgent Patch Tuesday fixes for a whopping 167 vulnerabilities in Windows and related software, including zero-day exploits in SharePoint Server and Windows Defender. But with threats evolving at breakneck speed, can patches keep up to protect our increasingly software-reliant lives?
Microsoft Patch Tuesday Addresses 165 Vulnerabilities, Including Exploited SharePoint Flaw
Microsoft's April Patch Tuesday update is a doozy, addressing a whopping 165 vulnerabilities, including a SharePoint Server spoofing flaw that's already been exploited in the wild. This mega update also fixes a bug that was publicly disclosed by a frustrated researcher.
Microsoft Patch Tuesday Addresses 167 Vulnerabilities, Fixes 2 Zero-Day Flaws
Microsoft's April Patch Tuesday update is a doozy, tackling a whopping 167 vulnerabilities, including two zero-day flaws that demand immediate attention. The question is, can you afford to wait - or do you need to act fast to safeguard your organization?
Microsoft Fixes Zero-Days with Windows 10 Extended Security Update
Microsoft just dropped a critical Windows 10 update, KB5082200, that bundles essential fixes, including two zero-day vulnerabilities, ahead of the April 2026 Patch Tuesday cycle. This extended security update is a must-have for Windows 10 users, addressing urgent security gaps that need immediate attention.
Ransomware Gang 0APT Targets Rival Krybit with Exposure Threat
Ransomware gangs are turning on each other, and the gloves are off - 0APT has publicly threatened to expose individuals tied to rival gang Krybit, escalating their rivalry to a whole new level of personal and public. This shocking move reveals the cutthroat world of cybercrime, where even thieves don't always agree.