CVE-2007-3896 Code injection in n/a

Critical 9.3 Published Updated

Remote attackers can execute arbitrary programs via invalid percent sequences in URI handlers, requiring user interaction to trigger the vulnerability.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2007-3896?

CVE-2007-3896 is a critical code injection vulnerability in Microsoft Internet Explorer, published on 11 Oct 2007. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-20

Which versions are affected by CVE-2007-3896?

It affects 1 product.

Products include Microsoft Internet Explorer.

How do I fix CVE-2007-3896?

No fix has been published for CVE-2007-3896 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2007-3896 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-3896 exists.

Public exploit code: 1 Exploit-DB entry.

All Microsoft Internet Explorer vulnerabilities

Sources

Also known as GHSA-wmhg-7fm8-r4vp.

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