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CVE-2020-12395

Date: May 26, 2020

Mozilla developers and community members reported memory safety bugs present in Firefox 75 and Firefox ESR 68.7. 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 ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.

Severity Score

Related Resources (13)

https://security.gentoo.org/glsa/202005-04
https://security.alpinelinux.org/vuln/CVE-2020-12395
https://usn.ubuntu.com/4373-1/
https://www.mozilla.org/security/advisories/mfsa2020-18/
https://security.gentoo.org/glsa/202005-03
https://www.mozilla.org/security/advisories/mfsa2020-17/
https://security-tracker.debian.org/tracker/CVE-2020-12395
https://access.redhat.com/security/cve/CVE-2020-12395
https://www.mozilla.org/security/advisories/mfsa2020-16/
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1595886%2C1611482%2C1614704%2C1624098%2C1625749%2C1626382%2C1628076%2C1631508
https://nvd.nist.gov/vuln/detail/CVE-2020-12395
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-12395
https://www.mend.io/vulnerability-database/CVE-2020-12395

Severity Score

Weakness Type (CWE)

Buffer Errors

CWE-119

Out-of-bounds Write

CWE-787

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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