How severe is CVE-2007-3902?

CVE-2007-3902 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2007-3902 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 36% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-3902?

CVE-2007-3902 primarily affects Microsoft Ie. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-3902?

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-2007-3902 published?

CVE-2007-3902 was published on 2007-12-12 and last updated on 2026-06-16.

CVE-2007-3902

CVE-2007-3902 is a critical-severity vulnerability in Microsoft Ie with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 36% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-189.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 36% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Microsoft Ie
Published: 2007-12-12
Last modified: 2026-06-16

Description

Use-after-free vulnerability in the CRecalcProperty function in mshtml.dll in Microsoft Internet Explorer 5.01 through 7 allows remote attackers to execute arbitrary code by calling the setExpression method and then modifying the outerHTML property of an HTML element, one variant of "Uninitialized Memory Corruption Vulnerability."

Frequently asked questions

What is CVE-2007-3902?: Use-after-free vulnerability in the CRecalcProperty function in mshtml.dll in Microsoft Internet Explorer 5.01 through 7 allows remote attackers to execute arbitrary code by calling the setExpression method and then modifying the outerHTML property of an HTML element, one variant of "Uninitialized Memory Corruption Vulnerability."
How severe is CVE-2007-3902?: CVE-2007-3902 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2007-3902 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 36% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-3902?: CVE-2007-3902 primarily affects Microsoft Ie. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-3902?: 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-2007-3902 published?: CVE-2007-3902 was published on 2007-12-12 and last updated on 2026-06-16.

References

Affected products (30)

cpe:2.3:a:microsoft:ie:5.x:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:ie:6.0:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:ie:6.0:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:5:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:5.01:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:5.1:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:5.01:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:5.01:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:5.01:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:5.01:sp4:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:5.2.3:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:5.5:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:5.5:preview:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:5.5:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:5.5:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:6:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:6.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:6.0.2600:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:6.0.2800:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:6.0.2800.1106:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:6.0.2900:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:6.0.2900.2180:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.0:beta:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.0:beta1:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.0:beta2:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.0:beta3:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.0.5730.11:*:*:*:*:*:*:*

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