CVE-2019-9794 Details
Description
A vulnerability was discovered where specific command line arguments are not properly discarded during Firefox invocation as a shell handler for URLs. This could be used to retrieve and execute files whose location is supplied through these command line arguments if Firefox is configured as the default URI handler for a given URI scheme in third party applications and these applications insufficiently sanitize URL data. *Note: This issue only affects Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1530103 | CVE | Issue TrackingPermissions RequiredVendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-07/ | CVE | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-08/ | CVE | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-11/ | CVE | Vendor Advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1530103 | [email protected] | Issue TrackingPermissions RequiredVendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-07/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-08/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-11/ | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-88 | Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| mozilla firefox | < 60.6.0 < 66.0 |
CPE
Remediation
| |
| mozilla thunderbird | < 60.6.0 |
CPE
Remediation
| |
| microsoft windows | All versions |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 25, 2025 | CPE Deprecation Remap | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Jul 21, 2021 | CWE Remap | [email protected] |
| Apr 30, 2019 | Initial Analysis | [email protected] |