WWBN, MedDream, Eclipse vulnerabilities

Cisco Talos' Vulnerability Discovery & Research team recently disclosed seven vulnerabilities in WWBN AVideo, four in MedDream, and one in an Eclipse ThreadX module. The vulnerabilities mentioned in this blog post have been patched by their respective vendors, all in adherence to Cisco 's...

Over 100 Dell Laptop Models Plagued by Vulnerabilities Impacting Millions

A new Cisco Talos report reveals critical flaws in Dell Latitude and Precision laptops. Find out how hackers can exploit the ControlVault chip to steal sensitive data...

PDF-XChange Editor EMF File EMR_EXTCREATEFONTINDIRECTW Facename Out-Of-Bounds Read Vulnerability

Talos Vulnerability Report TALOS-2025-2203 PDF-XChange Editor EMF File EMREXTCREATEFONTINDIRECTW Facename Out-Of-Bounds Read Vulnerability August 5, 2025 CVE Number CVE-2025-47152 SUMMARY An out-of-bounds read vulnerability exists in the EMF functionality of PDF-XChange Co. Ltd PDF-XChange Editor...

Backdoors & Breaches: How Talos is helping humanitarian aid NGOs prepare for cyber attacks

In 2023, Talos collaborated with NetHope and Cisco Crisis Response to create a customized Backdoors & Breaches expansion deck for international humanitarian organizations, addressing their unique cybersecurity challenges. The new expansion deck helps NGOs with constrained budgets improve proactiv...

IR Trends Q2 2025: Phishing attacks persist as actors leverage compromised valid accounts to enhance legitimacy

Phishing remained the top method of initial access this quarter, appearing in a third of all engagements - a decrease from 50 percent last quarter. Threat actors largely leveraged compromised internal or trusted business partner email accounts to deploy malicious emails, bypassing security contro...

Cisco Talos at Black Hat 2025: Briefings, booth talks and what to expect

Cisco Talos is back at Black Hat with new research, threat detection overviews and opportunities to connect with our team. Whether you're interested in what we're seeing in the threat landscape, detection engineering or real-world incident response, here's where and how to find us: Visit us at th...

BRB, pausing for a "Sanctuary Moon" marathon

Welcome to this week's edition of the Threat Source newsletter. Yesterday, Cisco Talos debuted the first Humans of Talos episode, where I interviewed Hazel Burton, a face and voice you're probably familiar with. In our conversation, Hazel shared not just the story of how she found her way onto th...

Bloomberg Comdb2 null pointer dereference and denial-of-service vulnerabilities

Cisco Talos' Vulnerability Discovery & Research team recently disclosed five vulnerabilities in Bloomberg Comdb2. Comdb2 is an open source, high-availability database developed by Bloomberg. It supports features such as clustering, transactions, snapshots, and isolation. The implementation of the...

Meet Hazel Burton

Welcome to the first episode of Humans of Talos, a new video interview series that shines a spotlight on team members across Talos. Featuring their personal stories, career journeys and unique perspectives, you'll get an inside look into what it's like to work in our organization and the people w...

ToolShell: Details of CVEs affecting SharePoint servers

Update 2025/07/22: Microsoft has released a security update for Sharepoint Enterprise Server 2016. The update, with the ID KB5002760, is available in the following link . Cisco Talos is aware of the ongoing exploitation of CVE-2025-53770 and CVE-2025-53771 in the wild. These are path traversal...

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...