{"cve":"CVE-2019-17008","nvd":{"published":"2020-01-08T22:15:11.730","modified":"2026-06-17T02:23:08.427","status":"Modified","description":"When using nested workers, a use-after-free could occur during worker destruction. This resulted in a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-416"],"references":["http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html","http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html","https://access.redhat.com/errata/RHSA-2020:0292","https://access.redhat.com/errata/RHSA-2020:0295","https://bugzilla.mozilla.org/show_bug.cgi?id=1546331"],"products":["mozilla:firefox","mozilla:firefox_esr","mozilla:thunderbird","opensuse:leap"],"source":"nvd","synced_at":"2026-10-19T21:01:01.339895972+00:00"},"epss":{"cve":"CVE-2019-17008","score":0.01877,"percentile":0.79422,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}