CVE-2007-3896

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 53.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2007-10-11 · updated 2026-06-16
Weakness: CWE-20

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.

Affected products

Microsoft Internet Explorer 11: 7.0

References

http://blogs.zdnet.com/security/?p=577
http://marc.info/?l=bugtraq&m=119143780202107&w=2
http://marc.info/?l=bugtraq&m=119144449915918&w=2
http://marc.info/?l=bugtraq&m=119159924712561&w=2
http://marc.info/?l=bugtraq&m=119168062128026&w=2
http://marc.info/?l=bugtraq&m=119194714125580&w=2
http://marc.info/?l=bugtraq&m=119195904813505&w=2
http://marc.info/?l=full-disclosure&m=119159477404263&w=2
http://marc.info/?l=full-disclosure&m=119168727402084&w=2
http://marc.info/?l=full-disclosure&m=119170531020020&w=2
http://marc.info/?l=full-disclosure&m=119171444628628&w=2
http://marc.info/?l=full-disclosure&m=119175323322021&w=2

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