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Ryan Seguin

Security Response Manager

Ryan Seguin's picture

Ryan joined Tenable in 2013 as a customer support engineer assisting customers with technical troubleshooting and product education. After that, he helped create dashboard and report templates for SecurityCenter that users can download through the Tenable.sc feed. Now Ryan is a member of the Security Response team, informing customers of the latest security threats, and providing in-depth analytics for today’s most critical vulnerabilities.

Interests outside of work: Ryan is a retro video game console/arcade hardware enthusiast and modder, and he is also studying Japanese and hopes to one day be fluent.

Blog Post

CVE-2019-19781: Unauthenticated Remote Code Execution Vulnerability in Citrix ADCs and Gateways

Monday, December 23, 2019

Citrix urges customers to apply mitigation steps for CVE-2019-19781, a remote code execution vulnerability exploitable through specially crafted HTTP requests to vulnerable devices. Background Citrix has released an advisory for...

Blog Post

Oracle Critical Patch Update for October Contains 180 Fixes

Wednesday, October 16, 2019

Oracle addresses 180 CVEs across 219 security patches in October’s Critical Patch Update, including a critical vulnerability in Oracle NoSQL Database. On October 15, Oracle released its Critical Patch Update...

Blog Post

Critical Zero-Day Pre-authentication Remote Code Execution Exploit Published for 5.x Versions of vBulletin

Tuesday, September 24, 2019

New critical zero-day pre-auth RCE exploit code published on Full Disclosure mailing list for 5.x versions of vBulletin (CVE-2019-16759). UPDATE 09/25/2019 : The background and solution sections below have been...

Blog Post

No, You Aren’t Being Invited to Win a New Car. That’s Spam on Your Calendar

Wednesday, September 11, 2019

By abusing the automatic event creation feature of integrated email calendars, spammers are finding ways to send you malicious links that are harder to ignore. Background In June, researchers at...

Blog Post

CVE-2019-15846: Unauthenticated Remote Command Execution Flaw Disclosed for Exim

Friday, September 6, 2019

CVE-2019-15846, a new unauthenticated remote code execution vulnerability in the Exim message transfer agent, has been patched in version 4.92.2. Users are encouraged to upgrade immediately. Background Exim Internet Mailer...

Blog Post

CVE-2019-15107: Exploit Modules Available for Remote Code Execution Vulnerability in Webmin

Monday, August 19, 2019

The popular Linux/UNIX systems management tool has more than 3 million downloads per year and the vulnerability has been present for at least a year, putting many virtual UNIX management...

Blog Post

Critical Vulnerabilities Dubbed URGENT/11 Place Devices Running VxWorks at Risk of RCE Attacks

Monday, July 29, 2019

Eleven vulnerabilities, including RCEs, denials of service, information leaks and logical flaws, were recently disclosed, impacting the RTOS VxWorks Background The Armis Research Team has released an advisory for URGENT/11...

Blog Post

Oracle Critical Patch Update for July Contains 265 Fixes

Tuesday, July 16, 2019

Oracle fixes 265 vulnerabilities in July’s Critical Patch Update. Background On July 16, Oracle released its Critical Patch Update (CPU) for July 2019 as part of its quarterly release of...

Blog Post

Unauthorized Call and Webcam Access Vulnerability in Zoom Mac Client (CVE-2019-13450)

Wednesday, July 10, 2019

A zero-day vulnerability in Zoom could potentially lead to a remote code execution attack. Here’s what you need to know. Background Security researcher Jonathan Leitschuh has disclosed a zero day...

Blog Post

Tenable Roundup for Microsoft's June 2019 Patch Tuesday

Tuesday, June 11, 2019

The SandboxEscaper privilege escalation bugs are among the nearly 90 vulnerabilities patched in Microsoft’s June 2019 Security Updates. Here’s what you need to know. Microsoft’s June 2019 Security Updates have...

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