Published: 09/07/2020 Updated: 30/01/2023

CVSS v2 Base Score: 6.9 | Impact Score: 10 | Exploitability Score: 3.4

CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8

VMScore: 614

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

When the Windows DLL "webauthn.dll" was missing from the Operating System, and a malicious one was placed in a folder in the user's %PATH%, Firefox may have loaded the DLL, leading to arbitrary code execution. *Note: This issue only affects the Windows operating system; other operating systems are unaffected.* This vulnerability affects Firefox < 78.

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Mozilla Foundation Security Advisory 2020-29 Security Vulnerabilities fixed in Thunderbird 78 Announced July 16, 2020 Impact high Products Thunderbird Fixed in Thunderbird 78 ...

Mozilla Foundation Security Advisory 2020-24 Security Vulnerabilities fixed in Firefox 78 Announced June 30, 2020 Impact high Products Firefox Fixed in Firefox 78 ...

CWE-427 https://bugzilla.mozilla.org/show_bug.cgi?id=1642400 https://www.mozilla.org/security/advisories/mfsa2020-24/http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html https://nvd.nist.gov https://www.mozilla.org/en-US/security/advisories/mfsa2020-29/

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CVE-2020-12423

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