Begun, the Patch Wars have

Welcome to this week's edition of the Threat Source newsletter. We all knew, to some degree or another, that this summer was going to a hot mess. I don't mean FIFA drama or record setting heat waves. I mean the slow but steady momentum that AI frontier models were accruing for vulnerability...

July 2026 Patch Tuesday fixes 622 Microsoft CVEs, including three zero-days

Just one month ago, June 2026 Patch Tuesday broke Microsoft’s previous record with 206 CVEs and three zero‑days. July now triples that count, reinforcing that the era of “small” Patch Tuesdays may be over as AI‑driven vulnerability discovery ramps up. The update includes 59 critical...

Microsoft and Adobe Patch Tuesday, July 2026 Security Update Review

Microsoft's July 2026 Patch Tuesday delivers security updates for a broad range of products and services, including several vulnerabilities that pose significant risks to enterprise environments. As attackers continue to target unpatched systems, the timely deployment of these updates remains one...

Microsoft Patches a Record 570 Security Flaws

Microsoft Corp. today released software updates to plug at least 570 security holes in its Windows operating systems and other software, almost triple the number of vulnerabilities the software giant fixed in its record-smashing Patch Tuesday release last month. Microsoft attributed the burgeonin...

PT-2026-49342

Name of the Vulnerable Software and Affected Versions Langflow versions prior to 1.10.0 Description The Shareable Playground feature, also known as Public Flows, allows unauthenticated users to execute workflows via a public link. A flaw in this feature enables arbitrary file reading depending on...

Microsoft’s biggest-ever Patch Tuesday fixes 206 bugs, including 3 zero-days

This month’s Patch Tuesday fixes 206 security flaws in Microsoft software, making it the biggest Patch Tuesday release ever. The update includes 32 critical vulnerabilities, as well as three publicly disclosed zero-days. Microsoft classifies these as zero-days because information about the...

Microsoft June 2026 Patch Tuesday Fixes 206 Flaws and 3 Zero-Days

Microsoft’s June 2026 patch Tuesday resolves 206 vulnerabilities, including 3 critical zero-days and severe 9.8 CVSS kernel, network and HTTP.sys flaws...

Pwn2Own Berlin 2026: On the Ground With TrendAI™ ZDI's Biggest AI Showdown Yet

47 zero-days fell at Pwn2Own Berlin 2026 for US$1,298,250 in payouts. TrendAI™ was on the ground all three days — here's what we saw...

ThreatsDay Bulletin: Linux Rootkits, Router 0-Day, AI Intrusions, Scam Kits and 25 New Stories

This week starts small. A token leaks. A bad package slips in. A login trick works. An old tool shows up again. At first, it feels like the usual mess. Then you see the pattern: attackers are not always breaking in. They are using the parts we already trust. That is what makes it worrying. The...

May 2026 Patch Tuesday: no zero-days but plenty to fix

This month’s Patch Tuesday remedies 137 security vulnerabilities, including 31 marked critical by Microsoft, with no zero-days actively exploited in the wild. Microsoft defines a zero-day as “a flaw in software for which no official patch or security update is available yet.” This month, Microsof...

Pwn2Own Berlin 2026 Hits Capacity as Rejected Hackers Release 0-Days

Pwn2Own Berlin 2026 reportedly reached full capacity for the first time, prompting rejected researchers to publicly disclose zero-day exploits targeting Firefox, NVIDIA, and AI platforms...

DarkSword Malware

DarkSword is a sophisticated piece of malware--probably government designed--that targets iOS. Google Threat Intelligence Group GTIG has identified a new iOS full-chain exploit that leveraged multiple zero-day vulnerabilities to fully compromise devices. Based on toolmarks in recovered payloads, ...

Claude Mythos Has Found 271 Zero-Days in Firefox

That's a lot. No, it's an extraordinary number: Since February, the Firefox team has been working around the clock using frontier AI models to find and fix latent security vulnerabilities in the browser. We wrote previously about our collaboration with Anthropic to scan Firefox with Opus 4.6, whi...

Synthesizing Multi-Agent Harnesses for Vulnerability Discovery

LLM agents have begun to find real security vulnerabilities that human auditors and automated fuzzers missed for decades, in source-available targets where the analyst can build and instrument the code. In practice the work is split among several agents, wired together by a harness: the program...

vulnswarm

VulnSwarm AI-powered vulnerability discovery using multi-agen...

Claude Mythos: Preparing for a World Where AI Finds and Exploits Vulnerabilities Faster Than Ever

Anthropic's new model can autonomously discover zero-days and develop working exploits. While access is currently limited to responsible actors, now is the time to strengthen response playbooks, reduce exposure, and incorporate AI into security programs...

Coruna: the framework used in Operation Triangulation

Introduction On March 4, 2026, Google and iVerify published reports about a highly sophisticated exploit kit targeting Apple iPhone devices. According to Google, the exploit kit was first discovered in targeted attacks conducted by a customer of an unnamed surveillance vendor. It was later used b...

⚡ Weekly Recap: CI/CD Backdoor, FBI Buys Location Data, WhatsApp Ditches Numbers & More

Another week, another reminder that the internet is still a mess. Systems people thought were secure are being broken in simple ways, showing many still ignore basic advisories. This edition covers a mix of issues: supply chain attacks hitting CI/CD setups, long-abused IoT devices being shut down...

DarkSword iOS Exploit Kit Uses 6 Flaws, 3 Zero-Days for Full Device Takeover

A new exploit kit for Apple iOS devices designed to steal sensitive data from is being wielded by multiple threat actors since at least November 2025, according to reports from Google Threat Intelligence Group GTIG, iVerify, and Lookout. According to GTIG, multiple commercial surveillance vendors...

⚡ Weekly Recap: Chrome 0-Days, Router Botnets, AWS Breach, Rogue AI Agents & More

Some weeks in security feel normal. Then you read a few tabs and get that immediate “ah, great, we’re doing this now” feeling. This week has that energy. Fresh messes, old problems getting sharper, and research that stops feeling theoretical real fast. A few bits hit a little too close to real...