CVE-2020-12420
When trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
- Affected products
- Alt Linux, Centos, Firefox, Firefox Esr, Linuxmint, Red Hat, Suse, Thunderbird
- Mozilla Firefox
- < 78.0
- Mozilla Firefox Esr
- < 68.10.0
- Mozilla Thunderbird
- < 68.10.0
- Fix
- Available
- CVSS 2.0
- 9.3 HIGH
- CVSS 3.1
- 8.8 HIGH
- EPSS
- 1.9% (77th percentile)
- Weakness
- CWE-416, CWE-362
- NVD status
- Modified
- Published
- 2020-07-09
CVE-2020-12420 at NVD
No indexed exploits for CVE-2020-12420 yet
Our index is partial: it proves presence, never absence
No exploit for CVE-2020-12420 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.