DEBIAN-CVE-2020-12405

Advisory lineage Upstream: 1 Downstream: 4
Upstream
CVE-2020-12405
Published: 09 Jul 2020, 15:15
Last modified:28 Apr 2026, 20:21

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

09 Jul 2020, 15:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:21
Last Modified
Vulnerability information updated

Description

When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Systems

  • debian•firefox-esr

    < 68.9.0esr-1 | < 68.9.0esr-1 | < 68.9.0esr-1 | < 68.9.0esr-1

  • debian•thunderbird

    < 1:68.9.0-1 | < 1:68.9.0-1 | < 1:68.9.0-1 | < 1:68.9.0-1

References (1)