CVE-2019-11707
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.
ACTIVELY EXPLOITED IN THE WILD
This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
Mozilla Firefox and Thunderbird Type Confusion Vulnerability
Mozilla Firefox and Thunderbird
Apply updates per vendor instructions.
5/23/2022
https://nvd.nist.gov/vuln/detail/CVE-2019-11707
Vulnerability Summary
CVSS v3 Score
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v2 Score
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS Score (Exploitation Probability)
This vulnerability has a 84.29% probability of being exploited in the next 30 days, ranking higher than 99% of all scored CVEs.
CWE Classification
Related Vulnerabilities
Same Weakness Type(CWE-843)
Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
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Type confusion in V8 in Google Chrome prior to 140.0.7339.185 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Similar SeverityHIGH
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