Two critical RCEs in PHP core
Two critical remote code execution vulnerabilities in PHP core could have implications across its wider ecosystem. Talos has published a blog to explain what we know so far, and details the Snort coverage available, including rules in the Community Ruleset.
Parasitizing trust: How legitimate infrastructure becomes a delivery pipeline for attackers
Adversaries are turning the tools businesses trust into delivery mechanisms for malicious activity. Cisco Talos observed abuse of more than 25 legitimate platforms over the past year, exploiting the built-in trust of collaboration, file-sharing, payment and other services to reach their targets.
There's only so much code: the rise in vulnerability numbers
The September Microsoft Patch Tuesday release included 975 vulnerability advisories. This month, 1,415 vulnerabilities were just dropped. Compared to a pre-June average of 100 a month, that increase is staggering. Where did they come from? And what does the future look like?
The Q3 Vulnerability Pulse: Discovery ≠ Exploitation
Is the cybersecurity world really facing a "Bugmageddon?" Thor breaks down the latest CVE and KEV trends in the latest Threat Source newsletter.
Compromised eMudhra intermediate certificates
Cisco Talos is aware of eight intermediate certificates belonging to the intermediate certificate authority, eMudhra.
Break the silence: Kazakhstan-nexus UAT-6275 targets CIS government organizations
Talos and Recorded Future identified UAT-6275 activity targeting government organizations across the Commonwealth of Independent States. Recovered artifacts show additional interest in water resources and energy.
Microsoft Patch Tuesday for October 2026 — Snort rules and prominent vulnerabilities
Microsoft has released its monthly security update for October 2026, which includes 1415 vulnerabilities affecting a range of products, including 85 that Microsoft marked as "critical."
Making sure the checks get printed
Pierre's debut newsletter explores the messy, real-world side of risk management and how to keep vital systems running when a perfect patch isn't an option.
UAT-11985: AI-assisted event lures delivering real-time Google AitM phishing
Cisco Talos identified an APT spear-phishing campaign against individuals affiliated with Taiwan research organizations. The operation leveraged legitimate public event themes and impersonated reputable academic and policy institutions.