CVE-2007-3670
Argument injection vulnerability in Microsoft Internet Explorer, when running on systems with Firefox installed and certain URIs registered, allows remote attackers to conduct cross-browser scripting attacks and execute arbitrary commands via shell metacharacters in a (1) FirefoxURL or (2) FirefoxHTML URI, which are inserted into the command line that is created when invoking firefox.exe. NOTE: it has been debated as to whether the issue is in Internet Explorer or Firefox. As of 20070711, it is CVE's opinion that IE appears to be failing to properly delimit the URL argument when invoking Firefox, and this issue could arise with other protocol handlers in IE as well. However, Mozilla has stated that it will address the issue with a "defense in depth" fix that will "prevent IE from sending Firefox malicious data."
Key facts
- CVSS score
- 4.3 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N- Weakness (CWE)
- CWE-79
- EPSS score
- 29.4% (98th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2007-3654)
- Published
- July 10, 2007
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2007-3654 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- microsoft / internet explorer
- microsoft / internet explorer
- microsoft / internet explorer
- microsoft / internet explorer
- microsoft / internet explorer
- microsoft / internet explorer
- mozilla / firefox
References
- ftp://ftp.slackware.com/pub/slackware/slackware-12.0/ChangeLog.txt
- http://archives.neohapsis.com/archives/fulldisclosure/2007-07/0160.html
- http://blog.mozilla.com/security/2007/07/10/security-issue-in-url-protocol-handling-on-windows/
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00771742
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00774579
- http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=565
- http://larholm.com/2007/07/10/internet-explorer-0day-exploit/
- http://msinfluentials.com/blogs/jesper/archive/2007/07/10/blocking-the-firefox-gt-ie-0-day.aspx
- http://osvdb.org/38017
- http://secunia.com/advisories/25984(Vendor Advisory)
- http://secunia.com/advisories/26096(Vendor Advisory)
- http://secunia.com/advisories/26149(Vendor Advisory)
- http://secunia.com/advisories/26204(Vendor Advisory)
- http://secunia.com/advisories/26216(Vendor Advisory)
- http://secunia.com/advisories/26258(Vendor Advisory)
- http://secunia.com/advisories/26271(Vendor Advisory)
- http://secunia.com/advisories/26572(Vendor Advisory)
- http://secunia.com/advisories/28179
- http://secunia.com/advisories/28363
- http://support.novell.com/techcenter/psdb/07d098f99c9fe6956523beae37f32fda.html
- http://www.kb.cert.org/vuls/id/358017(US Government Resource)
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:152
- http://www.mozilla.org/security/announce/2007/mfsa2007-23.html
- http://www.mozilla.org/security/announce/2007/mfsa2007-40.html
- http://www.novell.com/linux/security/advisories/2007_49_mozilla.html
- http://www.securityfocus.com/archive/1/473276/100/0/threaded
- http://www.securityfocus.com/bid/24837
- http://www.securitytracker.com/id?1018351
- http://www.securitytracker.com/id?1018360
- http://www.theregister.co.uk/2007/07/11/ie_firefox_vuln/
- http://www.ubuntu.com/usn/usn-503-1
- http://www.us-cert.gov/cas/techalerts/TA07-199A.html(US Government Resource)
- http://www.virusbtn.com/news/virus_news/2007/07_11.xml
- http://www.vupen.com/english/advisories/2007/2473
- http://www.vupen.com/english/advisories/2007/2565
- http://www.vupen.com/english/advisories/2007/4272
- http://www.vupen.com/english/advisories/2008/0082
- http://www.xs-sniper.com/sniperscope/IE-Pwns-Firefox.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/35346
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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