How severe is CVE-2008-4029?

CVE-2008-4029 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2008-4029 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-4029?

CVE-2008-4029 affects Microsoft Internet Explorer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2008-4029?

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

When was CVE-2008-4029 published?

CVE-2008-4029 was published on 2008-11-12 and last updated on 2026-06-16.

CVE-2008-4029

CVE-2008-4029 is a medium-severity vulnerability in Microsoft Internet Explorer with a CVSS 2.0 base score of 4.3. Its EPSS exploit-prediction score of 27% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 27% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Microsoft Internet Explorer
Published: 2008-11-12
Last modified: 2026-06-16

Description

Cross-domain vulnerability in Microsoft XML Core Services 3.0 and 4.0, as used in Internet Explorer, allows remote attackers to obtain sensitive information from another domain via a crafted XML document, related to improper error checks for external DTDs, aka "MSXML DTD Cross-Domain Scripting Vulnerability."

Frequently asked questions

What is CVE-2008-4029?: Cross-domain vulnerability in Microsoft XML Core Services 3.0 and 4.0, as used in Internet Explorer, allows remote attackers to obtain sensitive information from another domain via a crafted XML document, related to improper error checks for external DTDs, aka "MSXML DTD Cross-Domain Scripting Vulnerability."
How severe is CVE-2008-4029?: CVE-2008-4029 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2008-4029 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-4029?: CVE-2008-4029 affects Microsoft Internet Explorer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-4029?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2008-4029 published?: CVE-2008-4029 was published on 2008-11-12 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:microsoft:internet_explorer:*:*:*:*:*:*:*:*

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