Is CVE-2007-4039 actively exploited?

CVE-2007-4039 has no public evidence of in-the-wild exploitation as of 2026-04-23.

What is the CVSS score for CVE-2007-4039?

CVE-2007-4039 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2007-4039?

Patch guidance is available from mozilla security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2007-4039.

Fix CVE-2007-4039 - CRITICAL mozilla mozilla

Description

Argument injection vulnerability involving Mozilla, when certain URIs are registered, allows remote attackers to conduct cross-browser scripting attacks and execute arbitrary commands via shell metacharacters in an unspecified URI, which are inserted into the command line when invoking the handling process, a similar issue to CVE-2007-3670.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-79 · Cross-site Scripting (XSS)CWE-79 · Cross-site Scripting (XSS)

Metadata

Primary Vendor: MOZILLA
Published: 7/27/2007
Last Modified: 4/23/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2007-4039

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary