CVE-2019-11707: Mozilla Firefox and Thunderbird Type Confusion Vulnerability
High · CVSS 8.8 (CVSS 3.1)KEV known exploitedEPSS 37.7%, 99th percentilePublished Updated Assigner: mozilla
In CISA’s Known Exploited Vulnerabilities catalog: Mozilla Firefox and Thunderbird Type Confusion Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
Required action: Apply updates per vendor instructions.
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.
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Mozilla: FirefoxMozilla: Firefox ESRMozilla: Thunderbird
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- bugzilla.mozilla.org/show_bug.cgi (opens in new tab)
- security.gentoo.org/glsa/201908-12 (opens in new tab)
- www.mozilla.org/security/advisories/mfsa2019-18/ (opens in new tab)
- www.mozilla.org/security/advisories/mfsa2019-20/ (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)