CVE-2020-15670

HIGH

Firefox < 80 and Firefox ESR < 78.2 - Memory Corruption

Title source: llm

Description

Mozilla developers reported memory safety bugs present in Firefox for Android 79. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 80, Firefox ESR < 78.2, Thunderbird < 78.2, and Firefox for Android < 80.

References (5)

Core 5

Core References

Release Notes, Vendor Advisory x_refsource_misc

https://www.mozilla.org/security/advisories/mfsa2020-39/

Release Notes, Vendor Advisory x_refsource_misc

https://www.mozilla.org/security/advisories/mfsa2020-41/

Release Notes, Vendor Advisory x_refsource_misc

https://www.mozilla.org/security/advisories/mfsa2020-36/

Release Notes, Vendor Advisory x_refsource_misc

https://www.mozilla.org/security/advisories/mfsa2020-38/

Broken Link, Issue Tracking, Vendor Advisory x_refsource_misc

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1651001%2C1653626%2C1656957

Scores

CVSS v3 8.8

EPSS 0.0038

EPSS Percentile 59.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE

CWE-362 CWE-617 CWE-416

Status published

Products (3)

mozilla/firefox < 80.0 (2 CPE variants)

mozilla/firefox_esr < 78.2

mozilla/thunderbird < 78.2

Published Oct 01, 2020

Tracked Since Feb 18, 2026