CVE-2020-26974

Source
https://cve.org/CVERecord?id=CVE-2020-26974
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-26974.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-26974
Downstream
Related
Withdrawn
2026-01-27T04:17:16.147039Z
Published
2021-01-07T14:15:12Z
Modified
2026-01-27T04:17:16.147039Z
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

When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

References

Affected packages