HIGH PRIORITY

Cisco ASA and FTD Flaw Exploited in the Wild Can Trigger Remote DoS

Cisco has warned that a new vulnerability impacting Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software has been exploited in the wild. The high-severity flaw, tracked as CVE-2026-20349 (CVSS score: 8.6), is a case of insufficient error checking when processing HTTP requests that could allow an unauthenticated, remote attacker to trigger

Microsoft Plugs Nearly 400 Security Holes

Microsoft today released updates to remedy at least 398 security vulnerabilities in its Windows operating systems and supported software, including one weakness that is already being actively exploited and two others that were publicly detailed prior to today.

Shattering the Dream – When a Job Offer Becomes a Zero-Day Attack

Key Points Introduction Since early 2026, Check Point Research has tracked a wave of the Operation Dream Job campaign. This wave primarily targeted the defense sector worldwide, with a particular emphasis on companies operating in the aerospace and aviation industries. We observed the threat actor distributing modified PDF viewers designed to execute malicious payloads embedded within specially […] The post Shattering the Dream – When a Job Offer Becomes a Zero-Day Attack appeared first on Chec…

OpenAI Launches GPT-5.6-Cyber with Reduced Safeguards for Exploit Development

OpenAI on Monday unveiled a new cybersecurity-focused model called GPT‑5.6‑Cyber that it said is focused on vulnerability research, penetration testing, and incident response. "Built on GPT‑5.6 Sol, it is trained to improve capabilities on several specialized cybersecurity tasks (e.g., finding zero-day vulnerabilities and developing exploit chains) and to reduce refusals for certain higher-risk

Metabase SQL Zero-Day Attacks Could Have Wide Blast Radius

The maximum-severity vulnerability, which still has no CVE, allows malicious, remote administrator access to the business-analytics platform and its downstream users.

⚡ Weekly Recap: AI Goes Rogue, Metabase 0-Day, MCP Supply-Chain Attacks, and Router Backdoors

A lot of security problems still begin with someone doing a completely normal thing. Cloning a repo. Answering a call. Leaving a box exposed. Trusting the default. That pretty much covers the mood this week. Old bugs are back, supply chains are getting stranger, and some exploit paths are so short you wonder what was supposed to stop them in the first place. That’s only part of it. Here’s

AI-Assisted HTTP Terminator Finds Novel HTTP Desync Techniques and Apache Zero-Day

PortSwigger says HTTP Terminator, an artificial intelligence (AI)-assisted research system built by James Kettle, generated and proved new HTTP desynchronization techniques after exploring 30,000 candidate desync vectors. PortSwigger said a separate human-guided discovery cascade also exposed a zero-day in Apache Traffic Server. Kettle said HTTP Terminator tested 30,000 websites where

Tenable Hexa AI: Automating exposure remediation with agentic routines

Discover how Tenable Hexa AI closes the gap between exposure management and endpoint patching using intent-driven routines, smart guardrails, and human approval.Key takeawaysThe problem: A slow handoff between security workflows creates a days-long remediation gap. The solution: Tenable Hexa AI bridges this gap using intent-driven Routines that automate scoping, deployment, and verification across integrated platforms like Jamf. Safety and control: Autonomy is governed by the harness built into…

The Frontier AI Vulnerability Burst: Industrializing Autonomous Zero-Day Discovery in Open-Source Software

Frontier AI is reshaping vulnerability discovery. Learn how our NOVA system found 14,000+ unknown vulnerabilities across the open-source software supply chain. The post The Frontier AI Vulnerability Burst: Industrializing Autonomous Zero-Day Discovery in Open-Source Software appeared first on Unit 42.

Russian Espionage Group Exploited Zimbra Zero-Day to Steal Mail and 2FA Codes

Felons, Fraudsters Flog Offensive Cybersecurity Startup

A cybersecurity startup dangling millions of dollars to acquire zero-day security vulnerabilities in popular software is run by a pair of far-right conspiracy theorists and convicted felons whose most recent ventures included fake intelligence companies and a now-defunct AI-based lobbying platform they operated under assumed names.

This month in security with Tony Anscombe – May 2026 edition

In this roundup, Tony looks at attacks against Polish water treatment facilities, how AI-directed attacks failed in Mexico, and what Google believes is the first AI-generated zero-day exploit

Cloudflare Client-Side Security: smarter detection, now open to everyone

We are opening our advanced Client-Side Security tools to all users, featuring a new cascading AI detection system. By combining graph neural networks and LLMs, we've reduced false positives by up to 200x while catching sophisticated zero-day exploits.

2026-002: Multiple Vulnerabilities in Cisco Products

On 25 February 2026, Cisco released security advisories addressing multiple high and critical severity vulnerabilities in Cisco Catalyst SD-WAN controllers and Cisco SD-WAN Manager. If exploited, these vulnerabilities could allow attackers to gain administrative access to compromised systems. It is recommended to capture forensic evidence, hunt for indicators of compromise, and apply updates as soon as possible. One of the vulnerabilities, CVE-2026-20127, is exploited in the wild since 2023.

Rust in Android: move fast and fix things

Posted by Jeff Vander Stoep, Android Last year, we wrote about why a memory safety strategy that focuses on vulnerability prevention in new code quickly yields durable and compounding gains. This year we look at how this approach isn’t just fixing things, but helping us move faster. The 2025 data continues to validate the approach, with memory safety vulnerabilities falling below 20% of total vulnerabilities for the first time. Updated data for 2025. This data covers first-party and third-party…

Agneyastra to the Rescue: Protecting your Firebase Projects before the Tea spills out!

In July 2025, the Tea app 🔗, a mental health and social community platform, experienced a devastating breach that spilled 72,000 images (including 13,000 driver’s license and verification selfies) and over 1.1 million private direct messages onto the internet. The leaks first surfaced on 4chan and quickly spread across forums, torrents, and underground channels. This was not “just another API key leak.” Instead, it was a story about Firebase misconfigurations, poor data retention practices, an…

CVE-2025-30406: Gladinet CentreStack & Triofox Exploited | Huntress

Huntress has observed in the wild exploitation against CVE-2025-30406, a weakness due to hardcoded cryptographic keys.

Cleo Software Actively Being Exploited in the Wild | Huntress

Huntress identified an emerging threat involving Cleo’s LexiCom, VLTransfer, and Harmony software, known as CVE-2024-55956, commonly used to manage file transfers. Read more about this emerging threat on the Huntress Blog.

BrokenSesame

ApsaraDB and AnalyticDB contained several vulnerabilities in their PostgreSQL offerings which ultimately allowed unauthorized access to other tenants' databases and the ability to perform a supply-chain attack on both services, which in turn would have allowed remote code execution (RCE) as well. Both services implemented multi-tenancy through a shared K8s cluster, but contained several bugs related to tenant isolation which an attacker could chain together to achieve the above impact. In Apsar…

Azure Function Apps privilege escalation

Undocumented APIs used by the Azure Function Apps Portal could have allowed an attacker with existing access to a Reader role on a Function App to escalate their privileges and gain write permissions through arbitrary file reads on Function App containers. For Windows containers, this would only grant an attacker the ability to extract ASP.NET encryption keys (the impact of which remains unclear), but for Linux containers it would have allowed an attacker to read environmental variables contain…

ConnectWise/R1Soft RCE & Supply Chain Risks | Huntress

Huntress has validated an initial report for an authentication bypass and sensitive file leak present in the Java framework “ZK”, used within the ConnectWise R1Soft software Server Backup Manager SE.

New 0-Day Vulnerabilities Found in Microsoft Exchange | Huntress

The Huntress team is currently investigating new 0-day vulnerabilities in Microsoft Exchange servers, piggybacking on ProxyShell and ProxyLogon.

Remote Code Execution via GitHub Import

A critical vulnerability in GitLab's GitHub import feature allows remote code execution. The issue stems from improper handling of Sawyer::Resource objects, enabling injection of Redis commands. This can be escalated to execute arbitrary bash commands on the SaaS managed service as well as self-hosted GitLab servers, potentially leading to full system compromise.

Critical Vuln.: PrintNightmare Exposes Windows Servers to RCE | Huntress

Huntress is aware of PrintNightmare, a critical RCE and local privilege escalation vulnerability. This serious security flaw affects many Windows servers.

Zero-Day Vulnerabilities in Platforms Could Leave MSPs Exposed | Huntress

We unveil zero-day vulnerabilities we discovered in virtual event platforms used in MSP/Fortune 500 communities, plus some insight on supply chain attacks.