CVE-2019-11707 · netVigilance record NV22-0358

Mozilla Firefox and Thunderbird Type Confusion

past due

What to do

Apply updates per vendor instructions.

CISA deadline 2022-06-13 · passed 4 years 2 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA

What happened

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.

Who is affected

Mozilla Firefox and Thunderbird. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.

Weakness class: CWE-843.

Timeline

2022-05-23
Added to CISA KEVExploitation in the wild confirmed by CISA
2022-06-13
CISA remediation deadlinepassed 4 years 2 months ago

Sources

NVD entry for CVE-2019-11707 nvd.nist.gov/vuln/detail/CVE-2019-11707
CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2019-11707