Fortinet is warning customers of a critical FortiMail vulnerability, tracked as CVE-2026-104286, that is being actively exploited in zero-day attacks to execute unauthorized code or commands on vulnerable devices. [...]
Bulletin ID: 2026-123-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 10/01/2026 14:00 PM PDT Description: Powertools for AWS Lambda (Python) is a developer toolkit that implements serverless best practices and increases developer velocity. We identified CVE-2026-104002, a fail-open error handling issue within the data masking utility of Powertools for AWS Lambda (Python). This issue might allow actors to read sensitive field values that the application intended to…
Bulletin ID: 2026-122-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 10/01/2026 13:30 PM PDT Description: Amazon Ion Python is an open-source Python implementation of the Amazon Ion data notation. We identified CVE-2026-104020, an issue in the Ion reader in Amazon Ion Python before version 0.15.0 where a crafted, deeply nested Ion value could cause the application to raise an error or crash, resulting in a denial of service. Impacted versions: < 0.15.0 Please refe…
Microsoft says cyberattackers are currently benefiting from artificial intelligence faster than defenders, allowing threat actors to speed up vulnerability discovery, malware development, and post-compromise activity while security teams struggle to keep pace. [...]
Bulletin ID: 2026-121-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 10/01/2026 10:30 AM PDT Description: security-agent-mcp-server is an open-source Model Context Protocol (MCP) server, published by AWS in the awslabs/mcp repository, that AI assistants use to run local security scans (including differential "diff" scans) over source code. We identified CVE-2026-97662, an argument injection issue in the diff scan operation: a crafted reference value supplied to th…
This week, the useful words are boring ones: inspect, cache, compile, store, trust. Each sounds harmless. Each can become an attack path when a system does a little more than people expect. A model check can run code. A cache can mix up requests. A public secret can stay useful for years. That is the lesson running through the list. Attackers do not always need a brilliant new trick. They can
Secure file-sharing software company Kiteworks has released security updates to address 126 vulnerabilities, including a max-severity flaw affecting its Email Protection Gateway (EPG) security solution. [...]
As AI accelerates vulnerability discovery and exploitation, so-called virtual patching still comes down to defense-in-depth and strong application security fundamentals. The post AI Has Changed Attack Speed, Not Security Fundamentals appeared first on SecurityWeek.
Under certain conditions, CVE-2026-73570 can be exploited via specially crafted emails without user interaction. The post Zimbra Vulnerability Exploited in the Wild Prior to Public Disclosure appeared first on SecurityWeek.
Apple patched a CoreGraphics zero-day that may have been exploited in targeted attacks. A public PoC for the flaw is now available. Apple patched a zero-day vulnerability, tracked as CVE-2026-86950, in CoreGraphics that attackers may have exploited to target specific individuals. The flaw is an out-of-bounds write that can lead to arbitrary code execution when […]
The flaws were chained to hijack sessions, achieve remote code execution, and elevate privileges to root. The post Zammad Zero-Days Exploited in AI-Powered DIVD Hack appeared first on SecurityWeek.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a critical authentication bypass flaw impacting Cisco Catalyst SD-WAN Manager to its Known Exploited Vulnerabilities (KEV), following reports of active exploitation. The vulnerability, tracked as CVE-2026-76504 (CVSS score: 9.8), could allow an unauthenticated, remote attacker to access an affected system with
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Cisco Catalyst SD-WAN Manager flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a Cisco Catalyst SD-WAN Manager flaw, tracked as CVE-2026-76504 (CVSS score of 9.8), to its Known Exploited Vulnerabilities (KEV) catalog. The vulnerability resides in Cisco Catalyst SD-WAN Manager’s […]
The flaw could allow remote, unauthenticated attackers to access vulnerable appliances with administrative privileges. The post Cisco Patches Exploited Catalyst SD-WAN Zero-Day Vulnerability appeared first on SecurityWeek.
DIVD was breached through two Zammad zero-days that let an AI agent reach root in seconds, steal data and pivot to other services before being stopped. The Dutch Institute for Vulnerability Disclosure, a nonprofit organization of volunteer security researchers whose whole job is finding and responsibly disclosing vulnerabilities in other people’s software, just disclosed that […]
The company says its new frontier AI model found a critical vulnerability in software used by hospitals worldwide. The post Google Launches Gemini 4 Argon With Guardrail-Free Access for Vetted Defenders appeared first on SecurityWeek.
Security researchers have published the first public proof-of-concept for CVE-2026-86950, an Apple CoreGraphics flaw Apple says may have been used in attacks against specific targeted individuals. The trigger is a malicious PDF with a crafted embedded font that crashes unpatched iPhones and Macs. The code causes a crash, not an execution error. Turning the memory corruption into a working
Cryptocurrency exchange Bitget on Wednesday confirmed that attackers who stole $387.5 million last week exploited a zero-day flaw in third-party security products, citing ongoing investigation findings from SlowMist. "Their investigation identified malicious activity involving third-party security products, including a zero-day vulnerability, and recovered a customized tool used by the attacker
This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2026-50375.
Threat actors have been observed exploiting a critical pre-authentication command injection vulnerability in Citrix NetScaler ADC and NetScaler Gateway to drop web shells and attempt theft of configuration data. LevelBlue's Threat Hunt Operations & Research (THOR) team, which analyzed the exploitation activity across multiple customer environments, said it identified malicious NetScaler
Unit 42 is aware of possible 0-day activity against NetScaler devices. Citrix reports CVE-2026-88771, CVE-2026-88772 have been exploited in the wild. The post Threat Brief: NetScaler Zero Days CVE-2026-88771 and CVE-2026-88772 Exploited in the Wild (Updated September 30) appeared first on Unit 42.
The Dutch Institute for Vulnerability Disclosure (DIVD) says that the breach of its network was possible by exploiting a chain of two zero-day vulnerabilities in the open-source Zammad ticketing system. [...]
WatchGuard fixes 15 Fireware OS flaws, including a critical RCE bug that could give attackers root access to vulnerable Firebox appliances. WatchGuard has released security updates for Fireware OS that address 15 vulnerabilities, including a critical code injection flaw, tracked as CVE-2026-86131 (CVSS score of 9.2), that could allow an attacker to execute commands with […]
Vulnerability disclosures continue to skyrocket, doubling over the course of the year to more than 10,000 each month, Google researchers warned.
Threat actors have weaponized a now-patched security flaw in Zimbra Collaboration Suite (ZCS) to deploy web shells and access mailbox data, according to findings from the Microsoft Security Research team. The attack exploits CVE-2026-73570 (CVSS score: 8.9), an unauthenticated operating system command injection flaw that can lead to remote code execution when Simple Network Management Protocol
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning of a new critical vulnerability in MikroTik RouterOS that could lead to remote code execution or cause a denial-of-service condition. [...]
Attackers are exploiting a new critical zero-day flaw in Cisco Catalyst SD-WAN Manager, the system companies use to manage their Cisco SD-WAN networks, Cisco said in an advisory on September 30. The flaw, CVE-2026-76504, could allow a remote attacker with no login access to use the Manager's API as the admin user. Fixed releases are available, and there is no workaround. It carries a
OverviewOn September 30, 2026, Cisco published a security advisory for CVE-2026-76504, a critical API authentication bypass vulnerability affecting Cisco Catalyst SD-WAN Manager. The vulnerability has a CVSSv3.1 score of 9.8 and results from improper handling of URL encoding (CWE-177). An unauthenticated, remote attacker can send a crafted HTTP request that bypasses an authentication rule for a specific API endpoint, gaining access to the API with the privileges of the admin user.According to C…
Cisco released security updates to address a critical zero-day in the Catalyst SD-WAN Manager (tracked as CVE-2026-76504) that attackers are actively exploiting to escalate to admin privileges. [...]
Higher education faces a difficult security equation. Universities hold large volumes of sensitive student, financial, health, and research data while supporting open networks, distributed users, legacy infrastructure, and increasingly complex cloud environments. Attackers have taken notice, and the pressure on security teams continues to grow.In Q2 2025, universities faced an average of 4,388 cyberattacks per organization per week, up 24% from the same period in 2024. Nine in ten universities …
