CVEvulnerability
CVE-2020-12423
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-07-09
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.9 MEDIUM — AV:L/AC:M/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-427
Description
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.
Affected configurations
• mozilla firefox (< 78.0)
Related
Weakness · CWE (1)
- CWE-427 Uncontrolled Search Path Element weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html Broken Link
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html Broken Link
- https://bugzilla.mozilla.org/show_bug.cgi?id=1642400 Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-24/ Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html Broken Link
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html Broken Link
- https://bugzilla.mozilla.org/show_bug.cgi?id=1642400 Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-24/ Vendor Advisory