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Time is running out for cyber security, warn top tech firms

Critical Citrix NetScaler auth bypass now leveraged in attacks

Attackers have begun targeting a critical-severity Citrix NetScaler auth bypass flaw (CVE-2026-19490) in the wild, according to vulnerability intelligence company Previdian. [...]

PostgreSQL Fixes 12-Year-Old Logical Decoding Flaw Enabling Replication-Role Code Execution

PostgreSQL has released updates to address a security flaw that allows an account with the REPLICATION attribute to run arbitrary code as the operating-system user running the database server. The flaw, tracked as CVE-2026-6471 (CVSS score: 7.2), has been present since logical decoding was introduced in PostgreSQL 9.4 in 2014. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are

New Ted Backdoor Hides Inside Victims' Own HAProxy Builds to Intercept Web Traffic

A previously undocumented Linux toolkit has been found compiled directly into the trojanized HAProxy load balancers of two South Korean organizations, where it intercepted web traffic and served altered pages to selected visitors. The attackers named the implant ted in debug strings left in the binary. It is not a HAProxy vulnerability, and installing it requires code execution on the host and

Microsoft says some users can’t open the Teams desktop client

Microsoft is working to resolve a known issue that causes delays or blocks some users from opening the Microsoft Teams desktop client on Windows systems. [...]

39 New Methods That Compromise Passkey Authentication

Passkeys eliminate many password-based attacks, but researchers have documented 39 methods for compromising authentication built around them. Token explains how attackers can abuse authentication prompts, synced credentials, enrollment, recovery, and other trust boundaries without breaking FIDO2 cryptography. [...]

New CrowdStrike 'FalconFlank' zero-day grants SYSTEM privileges

An anonymous security researcher who uses the "Nightmare Eclipse" handle released a CrowdStrike Falcon zero-day exploit named "FalconFlank" that lets attackers escalate privileges on up-to-date Windows systems. [...]

AI Is Ending the Era of Hidden Vulnerabilities — Are Vendors Ready?

A tidal wave of bug reports is overwhelming software vendors, exposing secure-by-design failures and creating disclosure bottlenecks.

Exchange Online outage causes email delays, 'Server busy' errors

Microsoft is working to resolve an ongoing Exchange Online outage that is delaying email sent to and received from external domains. [...]

Insurers Search for Answers to Rein in Rogue AI

As incidents of unintended harm caused by rogue AI agents mount, CISOs and insurance firms are figuring out how to handle the fallout.

Over 440,000 Exploit Attempts Target Super Forms and Elementor Pro RCE Flaws

Threat actors are exploiting two critical security flaws in WordPress plugins Super Forms and Elementor Pro, according to findings from Wordfence. The vulnerabilities in question are - CVE-2026-14894 (CVSS score: 9.8) - A missing file type validation vulnerability in Super Forms – Drag & Drop Form Builder that allows unauthenticated attackers to upload files of any type, including

Plex Urges Immediate Updates After Patching Multiple Undisclosed Security Flaws

Plex is urging users to update their instances to the latest version following the release of an update that patches multiple security flaws. The fixes are available in Plex Media Server 1.43.3 and Plex Desktop 1.115.0. The streaming media service did not elaborate on what those issues are, but said CVE identifiers have been requested for them. "We recommend all server owners and Desktop users

Google Releases Chrome Update to Patch Actively Exploited V8 Zero-Day

Google on Thursday released security updates to patch 12 vulnerabilities, including one that has come under active exploitation in the wild. The high-severity vulnerability, tracked as CVE-2026-85046 (CVSS score: 8.8), has been described as a type confusion bug in V8, Chrome's JavaScript and WebAssembly engine. "Type confusion in V8 in Google Chrome prior to 152.0.7977.82 allowed a remote

GPT-6 Astra Scores 100% on ExploitBench as OpenAI Blocks PoC Exploit Requests

OpenAI on Thursday officially unveiled GPT‑6 Astra, which it described as the "world's most intelligent and aligned model." The development comes days after the artificial intelligence (AI) company said the model had reached the "Critical" cybersecurity capability threshold under its Preparedness Framework. "Astra is state-of-the-art on computer use, browsing, software engineering,

ISC Stormcast For Friday, September 4th, 2026 https://isc.sans.edu/podcastdetail/10082, (Fri, Sep 4th)

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

Large Enterprises Targeted in Fake Merger & Acquisition Scams

Threat actors behind the "Phantom Deal" campaign are studying companies in extreme detail, aiming to dupe midlevel employees into initiating large financial transfers.

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.

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

What the AI Warning Letter Completely Missed

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

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

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.

'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.

Honeypot-Omaha and batch.py [Guest Diary], (Wed, Sep 2nd)

[This is a Guest Diary by Frank Igbokwe, an ISC intern as part of the SANS.edu BACS program]