CVE-2019-11707 vulnerability in Mozilla Products
Published on July 23, 2019
Known Exploited Vulnerability
This Mozilla Firefox and Thunderbird Type Confusion Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Mozilla Firefox and Thunderbird contain a type confusion vulnerability that can occur when manipulating JavaScript objects due to issues in Array.pop, allowing for an exploitable crash.
The following remediation steps are recommended / required by June 13, 2022: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2019-11707 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is an Object Type Confusion Vulnerability?
The program allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
CVE-2019-11707 has been classified to as an Object Type Confusion vulnerability or weakness.
Products Associated with CVE-2019-11707
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Affected Versions
Mozilla Firefox ESR:- Version unspecified and below 60.7.1 is affected.
- Version unspecified and below 67.0.3 is affected.
- Version unspecified and below 60.7.2 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.