Connects to any signal across any vendor stack and powers adaptive AI Operatives that expose, detect, and neutralize cyberattacks.
Atlas Operations CenterSee what our SOC sees, review investigations, and see how we are protecting your business.
Technology IntegrationsAtlas connects to any signal across your current security tools. Whatever you're running, we're running with you.
Extend your team with immediate expertise, hands-on remediation, and the human accountability layer that boards, regulators, and cyber insurers require.
Threat Response UnitProactive threat intelligence, original threat research and a world-class team of seasoned industry veterans.
Response and RemediationPairs machine-speed containment with human judgment, delivering full threat response that's policy-bounded, reversible, and explainable.
MDR that moves first, multi-signal attack surface coverage, and 24/7 Elite threat hunters working as one continuous security program across any vendor stack.
Get unlimited Incident Response with threat suppression guarantee- anytime, anywhere.
Full alignment to the five-stages of CTEM operations; scope, discover, prioritize, validate, and mobilize against exposures attackers would use against you.
Flexible MDR pricing and packages that fit your unique security requirements.
Entry level foundational MDR coverage
Comprehensive Next Level eSentire MDR
Next Level eSentire MDR with Cyber Risk Advisors to continuously advance your security program
Stop ransomware before it spreads.
Identity ResponseStop identity-based cyberattacks.
Zero Day AttacksDetect and respond to zero-day exploits.
Cybersecurity ComplianceMeet regulatory compliance mandates.
Third-Party RiskDefend third-party and supply chain risk.
Cloud MisconfigurationEnd misconfigurations and policy violations.
Cyber RiskAdopt a risk-based security approach.
Mid-Market SecurityMid-market security essentials to prioritize.
Sensitive Data SecurityProtect your most sensitive data.
Cyber InsuranceMeet insurability requirements with MDR.
Cyber Threat IntelligenceOperationalize cyber threat intelligence.
Security LeadershipBuild a proven security program.
On May 14th, 2026, Cisco disclosed a maximum severity vulnerability in Cisco Catalyst Software-Defined Wide Area Network (SD-WAN) Controller and SD-WAN Manager. The vulnerability, tracked…
On May 5th, 2026, Palo Alto Networks disclosed CVE-2026-0300 (CVSS: 9.3), a critical zero-day buffer overflow vulnerability that impacts the User-ID Authentication Portal (aka Captive…
eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 2000+ organizations in 80+ countries from known and unknown cyber threats. Founded in 2001, the company’s mission is to hunt, investigate and stop cyber threats before they become business disrupting events.
About Us Leadership Careers Event Calendar → Newsroom → Aston Villa Football Club →We provide sophisticated cybersecurity solutions for Managed Security Service Providers (MSSPs), Managed Service Providers (MSPs), and Value-Added Resellers (VARs). Find out why you should partner with eSentire, the Authority in Managed Detection and Response, today.
Search our site
Multi-Signal MDR with 300+ technology integrations to support your existing investments.
24/7 SOC-as-a-Service with unlimited threat hunting and incident handling.
We offer three flexible MDR pricing packages that can be customized to your unique needs.
The latest security advisories, blogs, reports, industry publications and webinars published by TRU.
Compare eSentire to other Managed Detection and Response vendors to see how we stack up against the competition.
See why 2000+ organizations globally have chosen eSentire for their MDR Solution.
The Threat
On June 18th, 2019, Mozilla released a critical advisory (CVE-2019-11707) for a 'type confusion' vulnerability that is being actively exploited in the wild [1]. If successful, exploitation enables remote malicious actors to take full control of any vulnerable system(s).
The researcher that discovered this flaw indicates the bug can be exploited for UXSS (Universal Cross-Site Scripting) or RCE (Remote Code Execution) [2]. While both methods are serious, it is worth noting RCE would require additional complexities for successful exploitation (e.g. sandbox escape), while UXSS is a type of attack that could necessitate the execution of malicious code via client-side vulnerabilities.
Mozilla has indicated the following versions are fixed and protected against this critical flaw: 67.0.3 and Firefox ESR 60.7.1. It is highly recommended to apply the security patches after performing a business impact review, as attacks exploiting CVE-2019-11707 are already occurring.
What we’re doing about it
What you should do about it
Additional information
The vulnerability resides in the Array.pop file which is an array method is used by Firefox in JavaScript objects. There are not currently any workarounds for this issue outside of applying security patches. If not already enabled, it is recommended to turn on auto-updates for Firefox [3].
Attacks in the wild are speculatively believed to be financially motivated and targeting cryptocurrency exchanges.
References:
[1] https://www.mozilla.org/en-US/security/advisories/mfsa2019-18/
[2] https://twitter.com/5aelo/status/1141273396958900224
[3] https://www.technipages.com/enable-disable-automatic-updates-in-firefox