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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-2020-11896, CVE-2020-11897, CVE-2020-11901: Ripple20 Zero-Day Vulnerabilities in Treck TCP/IP Libraries Disclosed

Tuesday, June 16, 2020

Researchers discovered 19 new zero-day vulnerabilities in a TCP/IP software library developed by Treck. Dubbed Ripple20, the batch includes CVE-2020-11901, which has the potential to allow control of an internet-connected...

Blog Post

CVE-2020-12720: vBulletin Urges Users to Patch Undisclosed Security Vulnerability

Friday, May 8, 2020

vBulletin released patches for an undisclosed security vulnerability, encouraging users to apply the patch as soon as possible. Update 05/12/20: Updated the Analysis and Proof of concept section to reflect...

Blog Post

Adobe Type Manager Library Font Parsing Remote Code Execution Vulnerabilities Exploited in the Wild (ADV200006)

Monday, March 23, 2020

Microsoft releases an out-of-band advisory for remote code execution vulnerabilities being actively exploited in the wild. Update April 14, 2020: Microsoft has updated its advisory with reference to CVE-2020-1020 ,...

Blog Post

ThemeGrill Demo Importer Vulnerability Actively Exploited in the Wild

Tuesday, February 18, 2020

Severe vulnerability in ThemeGrill Demo Importer WordPress plugin is being actively exploited in the wild. Users should upgrade to version 1.6.3 ASAP. Background The ThemeGrill Demo Importer WordPress plugin allows...

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...

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