How severe is CVE-2007-4356?

CVE-2007-4356 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2007-4356 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4356?

CVE-2007-4356 primarily affects Microsoft Internet Explorer. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-4356?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2007-4356 published?

CVE-2007-4356 was published on 2007-08-15 and last updated on 2026-06-16.

CVE-2007-4356

CVE-2007-4356 is a critical-severity vulnerability in Microsoft Internet Explorer with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Internet Explorer
Published: 2007-08-15
Last modified: 2026-06-16

Description

Microsoft Internet Explorer 6 and 7 embeds FTP credentials in HTML files that are retrieved during an FTP session, which allows context-dependent attackers to obtain sensitive information by reading the HTML source, as demonstrated by a (1) .htm, (2) .html, or (3) .mht file.

Frequently asked questions

What is CVE-2007-4356?: Microsoft Internet Explorer 6 and 7 embeds FTP credentials in HTML files that are retrieved during an FTP session, which allows context-dependent attackers to obtain sensitive information by reading the HTML source, as demonstrated by a (1) .htm, (2) .html, or (3) .mht file.
How severe is CVE-2007-4356?: CVE-2007-4356 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2007-4356 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4356?: CVE-2007-4356 primarily affects Microsoft Internet Explorer. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-4356?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2007-4356 published?: CVE-2007-4356 was published on 2007-08-15 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*

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