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CVE-2019-11707

8.8 · HIGHActively Exploited

A type confusion vulnerability can occur when manipulating JavaScript objects due to issues in Array.pop.

Published Jul 23, 2019CWE-843EPSS 37.70%

Overview

CVE-2019-11707 is a high-severity vulnerability. It was published on July 23, 2019 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A type confusion vulnerability can occur when manipulating JavaScript objects due to issues in Array.pop. This can allow for an exploitable crash. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 60.7.1, Firefox < 67.0.3, and Thunderbird < 60.7.2.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refbugzilla.mozilla.org/show_bug.cgi?id=1544386Refsecurity.gentoo.org/glsa/201908-12Refwww.mozilla.org/security/advisories/mfsa2019-18/Refwww.mozilla.org/security/advisories/mfsa2019-20/Refbugzilla.mozilla.org/show_bug.cgi?id=1544386Refsecurity.gentoo.org/glsa/201908-12Refwww.mozilla.org/security/advisories/mfsa2019-18/Refwww.mozilla.org/security/advisories/mfsa2019-20/CISAwww.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-11707

How CyberStrike helps

Frequently asked questions

What is CVE-2019-11707?

CVE-2019-11707 is a high-severity vulnerability. It was published on July 23, 2019 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2019-11707?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-11707?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-11707?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-11707 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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