CVE-2019-9813

Incorrect handling of __proto__ mutations may lead to type confusion in IonMonkey JIT code and can be leveraged for arbitrary memory read and write. This vulnerability affects Firefox < 66.0.1, Firefox ESR < 60.6.1, and Thunderbird < 60.6.1.

CVSS v3.0

8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2.0

6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS

7.39% chance of exploitation in the next 30 days, 94th percentile

Published

2019-04-26

Updated

2024-08-04

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/46646

References

• CVE Record
• NVD entry

Related

• CVE-2019-9811
• CVE-2019-9816
• CVE-2019-9810
• CVE-2019-9831
• CVE-2019-9809
• CVE-2019-9832