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Cyber security news, as it breaks.
Updated 121 stories in 24 hours
Zero-Day Vulnerabilities
Malware, exploited flaws, phishing and botnets, from the researchers who found them.
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Most fromSecurity Affairs, The Hacker News, BleepingComputer, Schneier on Security
In the news hereCisco2Ivanti2Palo Alto Networks2Apple1
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U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Zammad GmbH Zammad flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the following vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog: The first flaw, CVE-2026-102489, is a session hijacking vulnerability in Zammad that can lead to remote code execution…
Security Affairs
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Fortinet is warning customers that attackers are exploiting a zero-day vulnerability (CVE-2026-104286) in FortiMail, its email security gateway. Fortinet says the flaw has been reported to be exploited in the wild, and urges customers to apply the workaround it shared until fixes are available. About CVE-2026-104286 “An Improper Limitation of a Pathname to a Restricted…
Help Net Security
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The hacking of internet-exposed, vulnerable Citrix NetScaler ADC and Gateway deployments has escalated. What started as stealthy targeting via zero-day exploits has now become widespread “spray and pray” exploitation, fueled by the publication of a root-cause analysis and a proof-of-concept exploit for CVE-2026-88771, which is remotely exploitable on unpatched devices with the default configuration. From…
Help Net Security
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A Linux privilege escalation vulnerability (CVE-2026-87886) affecting Acronis’ backup extensions for cPanel, WebHost Manager (WHM), and Plesk, is being leveraged by attackers, the backup and recovery company warns. “Exploitation of this vulnerability has been detected in the wild in limited, targeted attacks against Acronis Backup plugin for cPanel & WHM deployments,” Acronis said in the…
Help Net Security
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Independent security experts see the EU Cyber Resilience Act (CRA) reshaping international technology markets to emphasize cyber resilience from the ground up, thereby testing the operational capacities of technology vendors whose wares compete in those markets. The EU CRA introduces mandatory reporting within 24 hours for any actively exploited vulnerabilities or severe incidents affecting products…
CSO Online
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Welcome back to our monthly look at Apple security patches. This release shows Apple is not immune to the new normal of AI-assisted vulnerability discovery as they release patches for 273 total CVEs. For the September 2026 release, Apple released 273 unique CVEs across macOS 27 (Golden Gate), macOS Sequoia 15.8, macOS Tahoe 26.7, iOS…
Zero Day Initiative
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With Pwn2Own Ireland 2026 coming up, I wanted to share an unreleased blog post from my time as a Pwn2Own contestant. This post covers the discovery and exploitation of CVE-2024-0244, which is an unauthenticated heap-based buffer overflow leading to an arbitrary free() in the Canon MF753Cdw printer featured in Pwn2Own Toronto 2023. This blog post…
Zero Day Initiative
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Well, well, well, well, well, well, well, well, well, well, well, well, well, well, well. We’re back. Sorry. We’ve been watching the onslaught of vulnerabilities flood the internet. Every man, dog, and their grandmas (apparently?) are now using LLMs to find and reproduce vulnerabilities – it’
watchTowr Labs
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Exploited
Oh Look, The Foot Gun Went Off Again (Citrix NetScaler PreAuth Command Injection CVE-2026-88771)
God damn it, we’re back in the room again. Yes, that sound in your ears is screaming. The footgun has gone off again, shockingly, and we are yet again dealing with a situation where the entire world apparently knew about Citrix NetScaler CVEs before Citrix had woken up…
watchTowr Labs
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Part 1 of this week’s saga can be found here. This research is a glimpse into the capabilities that power our Preemptive Exposure Management solution, enabling organizations to rapidly react to emerging threats: the watchTowr Platform. What Is A Citrix NetScaler? NetScaler, from Citrix (now under Cloud…
watchTowr Labs
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One company told customers to power down its data-protection platform during a nine-hour window, while the other remained mum on reported attacks prior to releasing a patch for its product.
Dark Reading
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One company told customers to power down its data-protection platform during a nine-hour window, while the other remained mum on reported attacks prior to releasing a patch for its product.
Dark Reading
