Mozilla Firefox and Thunderbird Type Confusion Vulnerability

High Listed in CISA KEV

CVECVE-2019-11707

First seen2022-05-23 00:00 UTC

Disclosed2022-05-23 00:00 UTC

Last updated2026-07-15 09:16 UTC

Channel statuspending_review

Summary

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.

In-depth triage · Auto channel

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Affected products

Mozilla:Firefox and Thunderbird

Sources

CISA KEV DATABASE

Original Links

https://nvd.nist.gov/vuln/detail/CVE-2019-11707 advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog kev

Timeline

2022-05-23 kev_added CISA KEV
2026-07-15 kev_ingest CISA KEV