$ cve CVE-2007-3896 JSON

CVE-2007-3896 EXPLOIT

9.3

HIGH · CVSS 2.0 · EPSS 53.8% (pctl 99)

Patch early

A public exploit exists.

Description

The URL handling in Shell32.dll in the Windows shell in Microsoft Windows XP and Server 2003, with Internet Explorer 7 installed, allows remote attackers to execute arbitrary programs via invalid "%" sequences in a mailto: or other URI handler, as demonstrated using mIRC, Outlook, Firefox, Adobe Reader, Skype, and other applications. NOTE: this issue might be related to other issues involving URL handlers in Windows systems, such as CVE-2007-3845. There also might be separate but closely related issues in the applications that are invoked by the handlers.

Scoring

CVSS	9.3 (HIGH, v2.0)
Vector	AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS	53.83% — more likely to be exploited than 99% of all CVEs
Weakness	CWE-20
On CISA KEV	no
Public exploit	yes
Published	2007-10-11
Last modified	2026-06-16

Affected (3)

Vendor	Product
microsoft	internet explorer
microsoft	windows 2003 server
microsoft	windows xp

Public exploits

Source	Title	Date
exploit-db	Microsoft Windows - URI Handler Command Execution	2007-10-05

References

→ the Explorer · watch your stack · NVD