CVE-2007-3285

CVE-2007-3285 is a medium-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

• Severity: Medium (CVSS 2.0 base score 6.8)
• EPSS exploit prediction: 2% (75th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-264
• Affected product: Mozilla Firefox
• Published: 2007-06-20
• Last modified: 2026-06-16

Description

Mozilla Firefox before 2.0.0.5, when run on Windows, allows remote attackers to bypass file type checks and possibly execute programs via a (1) file:/// or (2) resource: URI with a dangerous extension, followed by a NULL byte (%00) and a safer extension, which causes Firefox to treat the requested file differently than Windows would.

Frequently asked questions

What is CVE-2007-3285?

Mozilla Firefox before 2.0.0.5, when run on Windows, allows remote attackers to bypass file type checks and possibly execute programs via a (1) file:/// or (2) resource: URI with a dangerous extension, followed by a NULL byte (%00) and a safer extension, which causes Firefox to treat the requested file differently than Windows would.

How severe is CVE-2007-3285?

CVE-2007-3285 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2007-3285 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-3285?

CVE-2007-3285 primarily affects Mozilla Firefox. In total, 44 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-3285?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2007-3285 published?

CVE-2007-3285 was published on 2007-06-20 and last updated on 2026-06-16.

References

• ftp://ftp.slackware.com/pub/slackware/slackware-12.0/ChangeLog.txt
• http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00771742
• http://osvdb.org/38032
• http://secunia.com/advisories/26072
• http://secunia.com/advisories/26149
• http://secunia.com/advisories/26204
• http://secunia.com/advisories/26216
• http://secunia.com/advisories/26258
• http://secunia.com/advisories/26271
• http://secunia.com/advisories/28135
• http://sunsolve.sun.com/search/document.do?assetkey=1-26-103177-1
• http://sunsolve.sun.com/search/document.do?assetkey=1-66-201516-1
• http://support.novell.com/techcenter/psdb/07d098f99c9fe6956523beae37f32fda.html
• http://www.0x000000.com/?i=333
• http://www.mandriva.com/security/advisories?name=MDKSA-2007:152
• http://www.mozilla.org/security/announce/2007/mfsa2007-22.html
• http://www.novell.com/linux/security/advisories/2007_49_mozilla.html
• http://www.securityfocus.com/bid/24447
• http://www.securitytracker.com/id?1018413
• http://www.ubuntu.com/usn/usn-490-1
• http://www.vupen.com/english/advisories/2007/4256
• https://bugzilla.mozilla.org/show_bug.cgi?id=383478

Affected products (44)

• cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.9:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.9.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.9.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.9.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.10:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.10.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.0.9:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.0.10:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.0.11:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:2.0:beta1:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:2.0:rc2:*:*:*:*:*:*

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