Published: 24/06/2021 Updated: 03/05/2022

CVSS v2 Base Score: 6.8 | Impact Score: 6.4 | Exploitability Score: 8.6

CVSS v3 Base Score: 8.8 | Impact Score: 5.9 | Exploitability Score: 2.8

VMScore: 605

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Mozilla developers and community members reported memory safety bugs present in Firefox 87. 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 < 88.

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mozilla firefox

Mozilla Foundation Security Advisory 2021-16 Security Vulnerabilities fixed in Firefox 88 Announced April 19, 2021 Impact high Products Firefox Fixed in Firefox 88 ...

A security issue has been found in Firefox before version 88 Mozilla developers and community members reported memory safety bugs present in Firefox 87 Some of these bugs showed evidence of memory corruption and Mozilla presumes that with enough effort some of these could have been exploited to run arbitrary code ...

CWE-787 https://www.mozilla.org/security/advisories/mfsa2021-16/https://bugzilla.mozilla.org/buglist.cgi?bug_id=1651449%2C1674142%2C1693476%2C1696886%2C1700091 https://nvd.nist.gov https://www.mozilla.org/en-US/security/advisories/mfsa2021-16/https://security.archlinux.org/CVE-2021-29947

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CVE-2021-29947

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