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Cisco Fixed Critical RCE in Nexus 9000 Series Switches

Cisco patched a critical Nexus 9000 vulnerability, CVE-2026-20212, allowing unauthenticated remote root code execution. Cisco has released patches for a critical flaw, tracked as tracked as CVE-2026-20212 (CVSS score of 9.8) in 10 Silicon One-based Nexus 9000 switches. The vulnerability could let an unauthenticated remote attacker execute code with root privileges. Cisco’s Technical Assistance Center […]

What We Missed: Did ShinyHunters 'Breach' ReliaQuest?

In this video conversation, Dark Reading editors discuss some of the news they didn't get a chance to cover, from the latest antics of ShinyHunters to new research about the prevalence (or lack thereof) of AI-generated malware.

Large group of Serbian opposition, activist figures targeted with spyware

At least 14 Serbians have been targeted with advanced spyware since December, with victims including a member of Parliament, a local opposition politician and student protesters, according to digital forensic researchers.

HPE patches critical ArubaOS-CX remote code execution flaw

Hewlett Packard Enterprise (HPE) has patched a critical vulnerability in the ArubaOS-CX network operating system that could lead to remote code execution. [...]

ThreatsDay: CEO Phishing Kits, 5K Dropbox Account Hacks, OAuth Traps + 17 More Stories

The worst part is how normal these attacks look. A call from IT. A shared file. A trusted app. A simple request to click “Allow.” Why break in when someone might open the door? That idea runs through this edition. Attackers use real tools, fake login pages, old account links, and software guides that point to unsafe downloads. One wrong letter in a web address can be enough. There is also

The story behind the intelligence

From engaging with cybercriminals to surviving a live Flamin’ Hot Cheetos taste test, Hazel reflects on the latest Beers with Talos with Azim, where they cover the full spectrum of what it takes to gather threat intel.

What the AI Warning Letter Completely Missed

The recent open letter is right about the "window," but it omits naming who is coming through it or, critically, who will close it.

ASCII smuggling crosses over from AI prompt injection to phishing evasion

Invisible Unicode characters popularized for hiding instructions from AI models are now being used to obfuscate words before email filters parse them. The post ASCII smuggling crosses over from AI prompt injection to phishing evasion appeared first on Microsoft Security Blog.

Critical Cisco Nexus 9000 Flaw Lets Unauthenticated Remote Attackers Run Code as Root

Cisco has released patches to address a critical security flaw affecting 10 Silicon One-based Nexus 9000 switches that could allow an unauthenticated, remote attacker to execute code as root, alongside an IOS XR hardening release bundling 7 umbrella CVEs, 2 of which are rated 9.8, with no workaround for any IOS XR version. The Nexus vulnerability, tracked as CVE-2026-20212 (CVSS score: 9.8), is

BraZetsu Malware Turns Compromised Windows Hosts Into Criminal Marketplace Inventory

Cybersecurity researchers have disclosed details of a sophisticated Python-based Windows malware framework called BraZetsu that fuels an underground marketplace commercializing access to compromised hosts. "Unlike the standard infostealer model, BraZetsu is a comprehensive master toolkit that empowers Initial Access Brokers (IABs) by turning compromised systems into highly valuable commercial

Microsoft: KB5120998 mouse reset bug affects only non-English PCs

Microsoft says a known issue that reverts mouse settings after installing the KB5120998 August 2026 preview update affects only non-English Windows 11 systems. [...]

OpenAI confirms ChatGPT is down ahead of 'Astra' model launch

ChatGPT and Codex are experiencing a major outage, with users reporting errors across nearly every major ChatGPT feature. [...]

Anthropic confirms Claude is down, multiple models affected

Claude is experiencing an outage, with users encountering elevated errors when sending requests to multiple Anthropic AI models. [...]

Critical Elementor Pro flaw exploited to take over WordPress sites

A recently patched critical vulnerability (CVE-2026-32475) in the Elementor Pro plugin for WordPress is being exploited in attacks that deliver a webshell payload and execute arbitrary commands on the server. [...]

Thomson Reuters Court Software Breach May Have Exposed SSNs and Sealed Data

Thomson Reuters disclosed on Wednesday that an unauthorized party obtained files from C-Track, the court case management platform sold by its West Publishing Corporation unit, in March 2026, affecting courts in 11 U.S. states, the U.S. Virgin Islands, and Ontario, Canada. West Publishing said it discovered the activity on June 30, 2026. A subset of court records could contain individuals' names

AI 'Machine Speed' Cuts 2-Week Attack Down to 10 Hours

The incident demonstrates how frontier AI agents can dramatically compress an attack timeline and coordinate a large-scale breach, according to researchers.

Your Employee’s Password Appeared in an Infostealer Log. Now What?

Infostealers can expose far more than passwords, including authenticated sessions that may let attackers bypass MFA. Flare explains how defenders can prioritize compromised identities, determine whether stolen access is still usable, and respond before it leads to account takeover. [...]

412,000 The Town 2025 Ticket Buyers’ Data Hits the Dark Web

412,000 The Town 2025 festival buyer records are being sold for $10,000, with Brazil’s data openly marketed for bank fraud, loans and SIM registration. A seller on a Russian-language data-trading forum listed what they’re calling a Ticketmaster database on September 2, claiming over 412,000 Latin American purchase records with a heavy concentration of Brazilian data. […]

Shadow AI in Financial Services | Risk & Governance

Shadow AI is spreading faster than governance in financial services. See the risks, why blocking AI backfires, and how to build policies that work.

Microsoft says KB5120998 Windows update resets desktop settings

Microsoft has confirmed that desktop settings are lost or reset on some Windows devices after installing the KB5120998 August 2026 preview update. [...]

'Breeze Comet' Tears Into Brazilian & Global Financial Systems

Brazil's most sophisticated threat group is making light work of the country's financial systems, putting money directly into its own pocket.

US and Canadian court data exposed in Thomson Reuters breach

Sealed court information and sensitive personal data were exposed in a breach of a Thomson Reuters records platform affecting courts in at least 12 U.S. states, the U.S. Virgin Islands and Canada.

Cyber Brief 26-09 - August 2026

Cyber Briefs are monthly executive reports that aim to present an overview of the most relevant developments in cyber security, based exclusively on open sources, with a view to inform political leadership and senior management in its constituency. Additional information on any item in this Brief can be provided upon request. Cyber Briefs are TLP:CLEAR.

US Becomes Top Target in RMM Phishing Campaign Spanning 46 Countries

An RMM phishing campaign initially associated with Canadian targeting due to its use of Canada Revenue Agency (CRA) tax forms as lures has turned out to be part of a broader campaign spanning 46 countries. Around 45% of observed activity was associated with the United States, making it the campaign's top geographic target. ANY.RUN research connected 601 cases to the wider operation, which uses

Proofpoint Brings OpenAI GPT Cyber Models into Security Operations to Help Defenders Investigate Threats Faster

Plex warns users to patch security vulnerabilities immediately

Plex urged users this week to update their desktop clients and media servers immediately to patch multiple security vulnerabilities. [...]

Attackers Turn Trusted Node.js Runtime Into Malware Delivery Tool in Targeted Attacks

Threat actors are leveraging the trusted Node.js JavaScript runtime in multiple cyber attacks as a way to deploy malicious payloads. According to a new report published by the Symantec Threat Hunter Team today, the attack method has been put to use in attacks targeting government departments, technology companies, and hotels since February 2026. "The technique's appeal is that node.exe (the

Shai-Hulud's Reach Just Grew to 469 Credential Locations. Here's What That Means

In early August, GitGuardian researchers found that a recent Shai-Hulud infostealer worm variant had evolved to scan for credentials across 469 locations across developer environments, Continuous Integration/Continuous Deployment (CI/CD) tooling, cloud configurations, and even AI tool configs. Earlier variants of the infostealer worm only checked 189 paths. The jump says a lot. Attackers have

Attackers Expose Ongoing AI Tool Use Targeting Organizations in Latin America

Explore how attackers targeting Latin American entities use AI for data exfiltration and how basic OpSec errors allow defenders to disrupt operations. The post Attackers Expose Ongoing AI Tool Use Targeting Organizations in Latin America appeared first on Unit 42.

Chaotic Eclipse Releases Crowdstrike Falcon ZeroDay FalconFlank

Chaotic Eclipse released FalconFlank, a PoC exploit for a Crowdstrike Falcon ZeroDay Elevation of Privileges Vulnerability Security researcher Chaotic Eclipse, also known as INFINITE NIGHTMARE, MSNightmare and Nightmare-Eclipse, released a new zero-day exploit targeting Crowdstrike Falcon cybersecurity platform. The researcher named the exploit FalconFlank, it triggers a privilege escalation flaw. According to the researcher, FalconFlank abuses […]