CVE-2007-4040

8.8 highEPSS 13%

High (8.8) in microsoft. EPSS 13% chance of exploitation in the next 30 days.

Argument injection vulnerability involving Microsoft Outlook and Outlook Express, 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.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 13% chance of exploitation in the next 30 days; higher than 96% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2007-07-27
Modified: 2026-06-16
Record from: the NVD, synced 2026-10-19

Affected

microsoft:outlook
microsoft:outlook_express

References

http://larholm.com/2007/07/25/mozilla-protocol-abuse/
http://seclists.org/fulldisclosure/2007/Jul/0557.html
http://larholm.com/2007/07/25/mozilla-protocol-abuse/
http://seclists.org/fulldisclosure/2007/Jul/0557.html

Check your stack JSON