8.8
CVSSv3

CVE-2021-38493

Published: 03/11/2021 Updated: 09/12/2022
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

Vulnerability Summary

Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. 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 < 78.14, Thunderbird < 78.14, and Firefox < 92.

Vulnerability Trend

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Vendor Advisories

Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code For the oldstable distribution (buster), this problem has been fixed in version 78140esr-1~deb10u1 For the stable distribution (bullseye), this problem has been fixed in version 78140esr-1~deb11u1 We ...
Multiple security issues were discovered in Thunderbird, which could result in the execution of arbitrary code For the oldstable distribution (buster), this problem has been fixed in version 1:78140-1~deb10u1 For the stable distribution (bullseye), this problem has been fixed in version 1:78140-1~deb11u1 We recommend that you upgrade your th ...
Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 7813 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 &lt; 7814, Thunderbird &lt; 7814, and Firefox &lt; 92 (CVE ...
Several memory safety bugs have been found in Thunderbird 7813 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 ...
Mozilla Foundation Security Advisory 2021-38 Security Vulnerabilities fixed in Firefox 92 Announced September 7, 2021 Impact high Products Firefox Fixed in Firefox 92 ...
Mozilla Foundation Security Advisory 2021-39 Security Vulnerabilities fixed in Firefox ESR 7814 Announced September 7, 2021 Impact moderate Products Firefox ESR Fixed in Firefox ESR 7814 ...
Mozilla Foundation Security Advisory 2021-42 Security Vulnerabilities fixed in Thunderbird 7814 Announced September 7, 2021 Impact moderate Products Thunderbird Fixed in Thunderbird 7814 ...