Medium severity · published Jul 23, 2019
CVE-2019-9816
A possible vulnerability exists where type confusion can occur when manipulating JavaScript objects in object groups, allowing for the bypassing of security checks within these…
5.9
CVSS
6.2%
EPSS
No
On KEV
Description
A possible vulnerability exists where type confusion can occur when manipulating JavaScript objects in object groups, allowing for the bypassing of security checks within these groups. *Note: this vulnerability has only been demonstrated with UnboxedObjects, which are disabled by default on all supported releases.*. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)6.2% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 67.0 · source: NVD
FE
Firefox Esr · Mozilla
before 60.7 · source: NVD
TH
Thunderbird · Mozilla
before 60.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-9816
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-9816
Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1536768
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-13/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-14/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-15/
More from Firefox
10.0
CVE-2019-11708
Mozilla Firefox and Thunderbird Sandbox Escape Vulnerability
9.8
CVE-2024-9680
Mozilla Firefox Use-After-Free Vulnerability
9.8
CVE-2010-3765
Mozilla Multiple Products Remote Code Execution Vulnerability
9.6
CVE-2022-26486
Mozilla Firefox Use-After-Free Vulnerability
8.8
CVE-2023-5217
Google Chromium libvpx Heap Buffer Overflow Vulnerability