CVE-2018-18500

Source
https://nvd.nist.gov/vuln/detail/CVE-2018-18500
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-18500.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2018-18500
Downstream
Related
Published
2019-02-05T21:29:00Z
Modified
2025-08-09T20:01:26Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A use-after-free vulnerability can occur while parsing an HTML5 stream in concert with custom HTML elements. This results in the stream parser object being freed while still in use, leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65.

References

Affected packages