How severe is CVE-2007-3550?

CVE-2007-3550 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2007-3550 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 28% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-3550?

CVE-2007-3550 primarily affects Microsoft Ie. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-3550?

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

When was CVE-2007-3550 published?

CVE-2007-3550 was published on 2007-07-03 and last updated on 2026-06-16.

CVE-2007-3550

CVE-2007-3550 is a high-severity vulnerability in Microsoft Ie with a CVSS 2.0 base score of 7.8. Its EPSS exploit-prediction score of 28% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 28% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Microsoft Ie
Published: 2007-07-03
Last modified: 2026-06-16

Description

Microsoft Internet Explorer 6.0 and 7.0 allows remote attackers to fill Zones with arbitrary domains using certain metacharacters such as wildcards via JavaScript, which results in a denial of service (website suppression and resource consumption), aka "Internet Explorer Zone Domain Specification Dos and Page Suppressing". NOTE: this issue has been disputed by a third party, who states that the zone settings cannot be manipulated

Frequently asked questions

What is CVE-2007-3550?: Microsoft Internet Explorer 6.0 and 7.0 allows remote attackers to fill Zones with arbitrary domains using certain metacharacters such as wildcards via JavaScript, which results in a denial of service (website suppression and resource consumption), aka "Internet Explorer Zone Domain Specification Dos and Page Suppressing". NOTE: this issue has been disputed by a third party, who states that the zone settings cannot be manipulated
How severe is CVE-2007-3550?: CVE-2007-3550 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2007-3550 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 28% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-3550?: CVE-2007-3550 primarily affects Microsoft Ie. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-3550?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2007-3550 published?: CVE-2007-3550 was published on 2007-07-03 and last updated on 2026-06-16.

References

Affected products (7)

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:6.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7.0:*:*:*:*:*:*:*
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:*:*:*:*:*:*

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