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.
From federal SOCs to Talos: Ryan Fetterman on practical security research
What does it mean to be "blue collar" for the blue team? Ryan Fetterman discusses the realities of detection engineering, and shares his philosophy on building a career in security without burning out.
I had plans for that second
The Earth is speeding up, the leap second is being abolished, oh, and there's critical vulnerabilities in PHP.
Compromised eMudhra intermediate certificates
Cisco Talos is aware of eight intermediate certificates belonging to the intermediate certificate authority, eMudhra.
Inside KeyDrift: Analyzing historical UAT-11473 activity on Cisco SD-WAN
Talos has identified UAT-11473, a highly sophisticated APT, who exploited CVE-2026-20127, an authentication bypass vulnerability in Cisco SD-WAN Catalyst Controller instances to bypass authentication and gain unauthorized access to affected systems to deploy KeyDrift.
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.
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.