CVE-2020-12406

high

Description

Mozilla Developer Iain Ireland discovered a missing type check during unboxed objects removal, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

References

https://www.mozilla.org/security/advisories/mfsa2020-22/

https://www.mozilla.org/security/advisories/mfsa2020-21/

https://www.mozilla.org/security/advisories/mfsa2020-20/

https://usn.ubuntu.com/4421-1/

https://bugzilla.mozilla.org/show_bug.cgi?id=1639590

Details

Source: Mitre, NVD

Published: 2020-07-09

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 9.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00342