Security Industry Sources

Citrix has released patches for yet another critical security flaw impacting NetScaler ADC and NetScaler Gateway that could result in remote code execution or denial-of-service (DoS) under certain conditions. "CVE-2026-107406 is a memory overflow vulnerability that may lead to remote code execution or denial-of-service under specific configuration conditions," Citrix said. The vulnerability

The security defect, tracked as CVE-2026-107406, could lead to remote code execution or denial-of-service. The post Citrix Urges Immediate Patching of Critical NetScaler Vulnerability appeared first on SecurityWeek.

September 2026 Patch Tuesday set an all-time record with 973 CVEs addressed across the Microsoft portfolio. We’re only four months into the Patch Apocalypse and everyone seems to be numb with respect to the insane number of CVEs reported. Despite this massive number, only two, CVE-2026-85880 and CVE-2026-81963, were reported Known Exploited and none were Publicly Disclosed. So for most of us, it’s still business as usual, patch systems at highest risk, but be prepared … More → The post October 2026 Patch Tuesday forecast: Time for an Office cleanup appeared first on Help Net Security.

A now-patched vulnerability in AWS Bedrock AgentCore could allow an attacker to use one AI chatbot to take over an organization's entire fleet.

The GPU giant released a fix for the flaw, tracked as CVE-2026-47483

Threat actors have started targeting CVE-2026-21589, a critical vulnerability in Atlassian’s self-hosted Data Center products. The post Attackers Target Critical Atlassian Vulnerability Within Hours of PoC Publication appeared first on SecurityWeek.

Critical and high-severity vulnerabilities could allow attackers to bypass authentication, execute arbitrary code, and elevate their privileges. The post SonicWall and Splunk Patch Critical Vulnerabilities appeared first on SecurityWeek.

Advisory at a Glance  Title  Chinese Government-linked Cyber Threat Actors Combine Automated and Hands-on Hacking Tools to Steal Sensitive Data  Original Publication  October 8, 2026  Executive Summary  Chinese government-linked cyber threat actors, enabled by the Integrity Technology Group, are combining automated scanning tools, large-scale botnets, and hands-on exploitation techniques to target and steal sensitive data from organizations worldwide, including US critical infrastructure sectors. These actors exploit vulnerabilities by using scanning tools, cross-site scripting attacks, and password spraying on Microsoft Exchange servers, while establishing persistence through VPN software and exfiltrating emails and credentials using scripts. To help mitigate against this activity, organizations should prioritize disabling unused services and ports, sanitizing web application inputs to prevent injection attacks, implementing multifactor authentication for all services, and applying timely patches to reduce risks of compromise.  Affected Products  CVE-2014-6278  CVE-2015-3306  CVE-2015-5477  CVE-2016-3081  CVE-2019-11510  CVE-2021-22205  CVE-2021-3199  CVE-2023-22894  Key Actions  Disable unused services and ports, such as automatic configuration, remote access, or file sharing protocols.  Sanitize user input in web applications to prevent possible cross-site scripting (XSS) payload injection.  Implement identity, credential, and access management (ICAM) policies, and

Day Three of Pwn2Own Ireland 2026 wrapsup with 17 attempts scheduled, roughly $1.33 million on the board. The headliner is the Google Pixel 10, which draws three separate attempts: Xint at 11:15 AM, Ikotas Labs at 2:00 PM, and the Valsamaras/Ken Gannon (Djini.ai)/Valsamara team closing things out at 6:30 PM — by far the single biggest payday in play all week. The Samsung Galaxy S26 gets one more run too, from BunkyoWesterns at 4:15 PM. Smart Home stays busy with three attempts on the Philips Hue Bridge Pro and two closing attempts on Home Assistant Green, while AI Infrastructure sees two more shots at Oracle's Autonomous AI Database plus a single run at Chroma. Printers round things out with steady, lower-stakes attempts on the Brother, Canon, and Lexmark targets — and with Team MAMMOTH's 7:00 PM attempt as the last scheduled slot, the Master of Pwn title could still be unsettled heading into the final hour. Stay tuned for live results as we have them. FAILURE - Unfortunately, Polina Smirnova (@moe_hw), Mikhail Evdokimov (@konatabrk) and Mate Zombor (@r4bbit_zm) of White Noise Clubm couldn't get their exploit of the Garmin Index BPM working within the time allotted SUCCESS / COLLISION - Results are in! Nikolaos Mourousias (@deltaclock) and Bruno Halltari (@BrunoModificato) of OtterSec successfully exploited the Oracle Autonomous AI Database with 4 bug chain of 3 collisions and 1 zero-day winning them $6,250 and 2.5 Master of P

Threat actors are exploiting CVE-2026-21589, a critical Atlassian flaw that can expose sensitive files across multiple Data Center products. Threat actors have started exploiting CVE-2026-21589 (CVSS score of 9.3), a critical arbitrary file access flaw in Atlassian Data Center products. The vulnerability could allow attackers to access sensitive files under certain conditions. Affected products include […]

Cisco Talos’ Vulnerability Discovery & Research team recently disclosed vulnerabilities in Adobe, Apple, Foxit Reader, and Microsoft. The vulnerabilities mentioned in this blog post have been patched by their respective vendors, in adherence to Cisco’s third-party vulnerability disclosure policy.  For Snort coverage that can detect

SonicWall patched a CVSS 10 pre-auth SSRF flaw in SMA1000 appliances that could let unauthenticated attackers reach internal functions. SonicWall released hotfixes for four vulnerabilities in its SMA1000 remote access appliances, including a critical flaw tracked as CVE-2026-102255 (CVSS score of 10.0. The issue is a pre-authentication SSRF bug in the WorkPlace portal that could […]

Read how How Microsoft Security's FORGE Lab is scaling vulnerability research from Windows to the Linux kernel. The post 3 lessons from frontier AI vulnerability research appeared first on Microsoft Security Blog.

One day after Atlassian released patches fixing a critical arbitrary file access vulnerability (CVE-2026-21589) in its self-managed Data Center products, and a few hours after watchTowr researchers published a technical rundown of the flaw, attackers have been spotted attempting to exploit it. CVE-2026-21589 PoC in action (Source: watchTowr) “Exploitation attempts have now started to hit our honeypot network,” threat intelligence vendor Previdian warned late Tuesday, and shared a list of attacker IPs. About CVE-2026-21589 CVE-2026-21589 … More → The post Exploitation attempts against critical Atlassian flaw have begun (CVE-2026-21589) appeared first on Help Net Security.

FBI and Secret Service warn FortiBleed, a credential-harvesting campaign against Fortinet firewalls, has compromised 86,644 devices and is locking out admins. The FBI and the U.S. Secret Service issued a joint advisory about FortiBleed, and the headline number alone is worth sitting with: more than 86,644 compromised Fortinet FortiGate devices across 194 countries, according to […]