CVE-2021-23960
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-23960
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-23960.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-23960
- Downstream
- Related
- Published
- 2021-02-26T03:15:13Z
- Modified
- 2025-08-09T20:01:26Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References