Tag: zero day
535 articles
Ivanti Discloses Zero-Day Exploited in Targeted Attacks
A high-severity zero-day vulnerability in Ivanti Connect Secure appliances is being exploited in targeted attacks, allowing remote attackers to execute arbitrary commands without user interaction. This authentication bypass flaw, tracked as CVE-2026-104935, affects several ICS versions and requires immediate patching and mitigation.
AI Agents Expose Vulnerability Via Software Supply Chain
The software supply chain has just proven to be a weak link in the security chain, as AI agents are exposing vulnerabilities through compromised tools and dependencies. Experts warn that verifying the source and integrity of these components is crucial to preventing such breaches.
Atlassian Flaw Exploited in Wild Amid Security Software Scrutiny
Hackers sprang into action just two hours after technical details were released, exploiting a critical Atlassian flaw that puts multiple Data Center products at risk. This rapid attack highlights the shrinking window for defence in today's threat environment.
SonicWall SMA1000 flaw exploited in targeted attacks
A critical vulnerability, CVE-2026-102255, in SonicWall SMA1000 appliances is being exploited in targeted attacks, putting sensitive internal functionality at risk. This maximum-severity flaw allows remote attackers to manipulate the appliance and perform unauthorized operations.
Citrix Warns of Zero-Day Attack on Unpatched NetScaler Systems
Citrix is warning users of a zero-day attack targeting unpatched NetScaler systems, so if you haven't updated yet, now's the time to take action and protect your systems from potential harm.
Researchers Expose Flaws in Google Pixel 10 with Remote Hacks
Google just issued a warning that its Pixel 10 may be vulnerable to remote hacks, with researchers discovering flaws that could be exploited by attackers. Three teams of experts successfully broke into fully patched Pixel 10 devices at a recent hacking contest, raking in a total of $562,500 in prizes.
Hackers Earn $1.3 Million for 98 Zero-Days at Pwn2Own Ireland Contest
In a stunning display of hacking prowess, contestants at Pwn2Own Ireland 2026 racked up a whopping $1.3 million in rewards by uncovering 98 zero-day vulnerabilities over just three days. Top prize winners Ikotas Labs took home $361,000 and a Pixel 10 chain by exploiting multiple zero-days in high-profile targets like Google Pixel 10 and Samsung Galaxy S26.
Cisco Discloses Critical Flaws in Nexus Switches
Cisco has uncovered five critical vulnerabilities in its Nexus switches that could let hackers run malicious code with root access or bring down entire networks, causing major disruptions. This security threat affects Nexus 3000 and 9000 Series switches, putting your network at risk of remote code execution and denial-of-service attacks.
Samsung Galaxy S26 Exploited Three Times at Pwn2Own Ireland
The Samsung Galaxy S26 proved to be a vulnerable target at Pwn2Own Ireland, falling to three separate zero-day exploits on day two of the competition, with security researchers scoring big with their discoveries. Each successful hack earned them a hefty payday, with a total of $232,500 in cash awards doled out that day.
SonicWall Fixes CVSS 10.0 Flaw in SMA1000 Appliances
SonicWall has patched a critical security flaw in its SMA1000 appliances that could let attackers infiltrate internal systems and run unauthorized operations. The bug, rated 10.0 on the CVSS scale, can be exploited before login, making it a high-risk vulnerability.
ShinyHunters' Teen Ringleader Detained Amid Extortion Attempt
A teenager known as "Rey," suspected of leading ShinyHunters, has been detained in Amman, Jordan, and is cooperating with the FBI after the group allegedly attempted to extort a Boeing business unit. The group's exploits began with a PeopleSoft vulnerability, fueling a wave of data thefts.
Atlassian Flaw Exploited in Wild After Public PoC Release
Hackers were quick to pounce on a newly disclosed Atlassian vulnerability, launching exploitation attempts within just two hours of a public proof-of-concept (PoC) release. This critical flaw, tracked as CVE-2026-21589, allows unauthenticated attackers to access sensitive files on vulnerable self-hosted instances.
Agentic Pentesting Targets Validation Gap in Cyber Defenses
The threat landscape is evolving at an alarming rate: a 49.5% surge in CVEs reported in the first half of 2026, with exploits now emerging in as little as eight hours. This means traditional cyber defense validation methods are being outpaced by the speed and volume of attacks.
Atlassian Flaw Sees Rapid Exploitation Attempts
A critical vulnerability, CVE-2026-21589, has been discovered in multiple Atlassian Data Center products, allowing unauthenticated attackers to access sensitive files, with rapid exploitation attempts already underway. Patching is urgently recommended for affected versions of Bitbucket, Confluence, Jira, Bamboo, Crowd, Crucible, and Fisheye Data Center products.
Security Researchers Exploit 32 Zero-Days at Pwn2Own Ireland
In a staggering display of cybersecurity prowess, researchers at Pwn2Own Ireland 2026 exploited a whopping 32 zero-day vulnerabilities on the competition's first day, raking in $388,500 in awards. The successful hacks targeted a range of products, from mobile phones like the Apple iPhone 17 and Samsung Galaxy S26, to smart home devices and AI infrastructure.
Citrix Unveils Third Exploited NetScaler Zero-Day Vulnerability
Citrix has just revealed a third critical NetScaler zero-day vulnerability, CVE-2026-88779, which can cause a denial of service in SAML-enabled deployments, and security experts warn it's painfully easy to trigger. This high-severity defect is the latest in a string of actively exploited NetScaler vulnerabilities.
Citrix NetScaler Exploited in Active Attacks Amid New 0-Day Reports
Citrix NetScaler is under active attack, with hackers exploiting a newly discovered vulnerability that can cause denial of service with just a single specially crafted request. The flaw, known as CVE-2026-88779, affects certain NetScaler deployments configured for single sign-on authentication.
Microsoft Exchange Flaw Exposes Mailboxes to Authenticated Attackers
A newly discovered flaw in Microsoft Exchange Server could put your mailboxes at risk, allowing authenticated attackers to elevate their privileges and gain unauthorized access across your network. Microsoft has urgently released a security update to patch this high-severity vulnerability, rated 8.8 on the CVSS scale.
Citrix Warns of Targeted Attacks Via New Zero-Day Flaw
Citrix is warning of targeted attacks exploiting a newly discovered zero-day flaw, CVE-2026-88779, a high-severity memory buffer issue that could disrupt services for vulnerable NetScaler ADC and NetScaler Gateway customers. The company has urged affected users to act quickly to protect themselves from potential denial-of-service attacks.
Citrix NetScaler Zero-Day Exploited in Targeted Attacks
A critical zero-day vulnerability, CVE-2026-88779, has been exploited in targeted attacks, causing concern for Citrix NetScaler ADC and Gateway users. This memory overflow flaw can lead to denial-of-service attacks when specific deployment conditions are met.
Citrix Disrupts Zero-Day Attacks on NetScaler with Emergency Patches
Citrix has rolled out emergency patches to shield NetScaler from zero-day attacks that can cause Denial of Service chaos, and you should update ASAP to avoid getting caught in the crossfire. The newly discovered vulnerability, CVE-2026-88779, has already been exploited in targeted attacks, earning a scary CVSS score of 8.7.
Fortinet Warns of Actively Exploited FortiMail Zero-Day Vulnerability
Fortinet is warning users of a critical vulnerability in its FortiMail product that's already being exploited by hackers, posing an immediate threat to security. This zero-day flaw has been actively targeted by attackers, prompting Fortinet to sound the alarm.
Fortinet FortiMail Zero-Day Flaw Exploited in Attacks
A critical Fortinet FortiMail flaw, rated CVSS 9.8, is being actively exploited by attackers, allowing them to write arbitrary files to vulnerable systems without needing authentication. This severe vulnerability combines a path traversal and a NULL-byte handling error, making it a high-risk threat.
Fortinet Warns of Zero-Day Attacks Exploiting Critical FortiMail Flaw
Fortinet has issued a critical warning about zero-day attacks exploiting a severe vulnerability in its FortiMail appliances, with a CVSS score of 9.8 that allows unauthenticated attackers to write arbitrary files on the system. This flaw, tracked as CVE-2026-104286, is under active exploitation, putting FortiMail users at risk.