CVE-2021-23960
Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.
- Affected products
- Alt Linux, Astra Linux, Centos, Firefox, Firefox Esr, Linuxmint, Red Hat, Suse
- Mozilla Firefox
- < 85.0
- Mozilla Firefox Esr
- < 78.7
- Mozilla Thunderbird
- < 78.7
- Fix
- Available
- CVSS 3.1
- 8.8 HIGH
- EPSS
- 1.2% (65th percentile)
- NVD status
- Modified
- Published
- 2021-02-26
CVE-2021-23960 at NVD
No indexed exploits for CVE-2021-23960 yet
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No exploit for CVE-2021-23960 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.