Malicious AI Models Are Behind a New Wave of Cybercrime, Cisco Talos

Cybercriminals use malicious AI models to write malware and phishing scams Cisco Talos warns of rising threats from uncensored and custom AI tools...

Bykea: Critical Information Disclosure via /talos/api/v1/files/upload

A vulnerability was discovered in the file upload functionality, where uploaded files were first stored on the server before being sent to S3. Due to a configuration flaw, memory chunks from the server were included in some uploaded files. This issue was classified as critical and was addressed a...

New PathWiper Malware Strikes Ukraine’s Critical Infrastructure

Cisco Talos discovers PathWiper, a destructive new malware targeting critical infrastructure in Ukraine, highlighting ongoing cyber threats amidst the Russia-Ukraine conflict...

Parallels Desktop prl_disp_service Snapshots.xml Hard Link Privilege Escalation

Talos Vulnerability Report TALOS-2024-2124 Parallels Desktop prldispservice Snapshots.xml Hard Link Privilege Escalation June 3, 2025 CVE Number CVE-2024-54189 SUMMARY A privilege escalation vulnerability exists in the Snapshot functionality of Parallels Desktop for Mac version 20.1.1 build 55740...

Chinese Hackers Exploit Cityworks 0-Day to Hit US Local Governments

Cisco Talos warns of active exploitation of a zero-day vulnerability CVE-2025-0994 in Cityworks supposedly by Chinese hackers from…...

Proactive threat hunting with Talos IR

At Cisco Talos, we understand that effective cybersecurity isn't just about responding to incidents -- it's about preventing them from happening in the first place. One of the most powerful ways we do this is through proactive threat hunting. Our Talos Incident Response Talos IR team works closel...

State-of-the-art phishing: MFA bypass

Cybercriminals are bypassing multi-factor authentication MFA using adversary-in-the-middle AiTM attacks via reverse proxies, intercepting credentials and authentication cookies. The developers behind Phishing-as-a-Service PhaaS kits like Tycoon 2FA and Evilproxy have added features to make them...

Eclipse and STMicroelectronics vulnerabilities

Cisco Talos' Vulnerability Discovery & Research team recently disclosed three vulnerabilities found in Eclipse ThreadX and four vulnerabilities in the STMicroelectronics fork of ThreadX called X-CUBE-AZRTOS. The vulnerabilities mentioned in this blog post have been patched by their respective...

Year in Review: In conversation with the report's authors

🎥 Talos Year in Review 2024: Part 1 & 2 - Watch Now! Another year, another mountain of malicious telemetry to sift through. I spoke with a few of Talos' Year in Review authors, freshly out of the sandbox, to discuss the how's and why's of our biggest findings. 👉 Part 1: The major theme of 2024, t...

Beers with Talos: Year in Review episode

Joe, Hazel, Bill and Dave break down Talos' Year in Review 2024 and discuss how and why cybercriminals have been leaning so heavily on attacks that are routed in stealth in simplicity. The team also provide insights into some of the topics of the report, including the top-targeted vulnerabilities...

SUSE CVE-2025-21869

In the Linux kernel, the following vulnerability has been resolved: powerpc/code-patching: Disable KASAN report during patching via temporary mm Erhard reports the following KASAN hit on Talos II power9 with kernel 6.13: 12.028126 ==================================================================...

UBUNTU-CVE-2025-21869

In the Linux kernel, the following vulnerability has been resolved: powerpc/code-patching: Disable KASAN report during patching via temporary mm Erhard reports the following KASAN hit on Talos II power9 with kernel 6.13: 12.028126 ==================================================================...

CVE-2025-21869

Summary: CVE-2025-21869 is tied to a Linux kernel PowerPC code-patching issue where KASAN reports could trigger during patching on certain hardware (Talos II with kernel 6.13). Root cause: patching instructions could write into user-address-space memory under KASAN instrumentation, causing a KASA...

Sellers can get scammed too, and Joe goes off on a rant about imposter syndrome

Welcome to this week's edition of the Threat Source newsletter. Hello again my friends! Geez, it's been a year am I right? Lemons its February you say?! Oof. Imposter syndrome. You've heard the term I'm sure, but what is it? Basically: imposter syndrome is the persistent feeling of self-doubt and...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: powerpc/code-patching: Disable KASAN report during patching via temporary mm Erhard reports the following KASAN hit on Talos II power9 with kernel 6.13: 12.028126 ==================================================================...

Google Cloud Platform Data Destruction via Cloud Build

Background & Public Research Google Cloud Platform GCP Cloud Build is a Continuous Integration/Continuous Deployment CI/CD service offered by Google that is utilized to automate the building, testing and deployment of applications. Orca Security published an article describing certain aspects of...

CVE-2022-36103

Talos Linux is a Linux distribution built for Kubernetes deployments. Talos worker nodes use a join token to get accepted into the Talos cluster. Due to improper validation of the request while signing a worker node CSR certificate signing request Talos control plane node might issue Talos API...

Talos IR trends Q4 2024: Web shell usage and exploitation of public-facing applications spike

Threat actors increasingly deployed web shells against vulnerable web applications and primarily exploited vulnerable or unpatched public-facing applications to gain initial access in Q4, a notable shift from previous quarters. The functionality of the web shells and targeted web applications...

Slew of WavLink vulnerabilities

Lilith of Cisco Talos discovered these vulnerabilities. Forty-four vulnerabilities and sixty-three CVEs were discovered across ten .cgi and three .sh files, as well as the static login page, of the Wavlink AC3000 wireless router web application. The Wavlink AC3000 wireless router is one of the mo...

Observium add_alert_check cross-site scripting (XSS) vulnerability

Talos Vulnerability Report TALOS-2024-2090 Observium addalertcheck cross-site scripting XSS vulnerability January 15, 2025 CVE Number CVE-2024-47140 SUMMARY A cross-site scripting xss vulnerability exists in the addalertcheck page of Observium CE 24.4.13528. A specially crafted HTTP request can...