How severe is CVE-2009-1140?

CVE-2009-1140 has a CVSS 2.0 base score of 7.1, rated high severity.

Is CVE-2009-1140 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1140?

CVE-2009-1140 primarily affects Microsoft Internet Explorer. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-1140?

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-2009-1140 published?

CVE-2009-1140 was published on 2009-06-10 and last updated on 2026-06-16.

CVE-2009-1140

CVE-2009-1140 is a high-severity vulnerability in Microsoft Internet Explorer with a CVSS 2.0 base score of 7.1. Its EPSS exploit-prediction score of 25% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 2.0 base score 7.1)
EPSS exploit prediction: 25% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Microsoft Internet Explorer
Published: 2009-06-10
Last modified: 2026-06-16

Description

Microsoft Internet Explorer 5.01 SP4; 6 SP1; 6 and 7 for Windows XP SP2 and SP3; 6 and 7 for Server 2003 SP2; 7 for Vista Gold, SP1, and SP2; and 7 for Server 2008 SP2 does not prevent HTML rendering of cached content, which allows remote attackers to bypass the Same Origin Policy via unspecified vectors, aka "Cross-Domain Information Disclosure Vulnerability."

Frequently asked questions

What is CVE-2009-1140?: Microsoft Internet Explorer 5.01 SP4; 6 SP1; 6 and 7 for Windows XP SP2 and SP3; 6 and 7 for Server 2003 SP2; 7 for Vista Gold, SP1, and SP2; and 7 for Server 2008 SP2 does not prevent HTML rendering of cached content, which allows remote attackers to bypass the Same Origin Policy via unspecified vectors, aka "Cross-Domain Information Disclosure Vulnerability."
How severe is CVE-2009-1140?: CVE-2009-1140 has a CVSS 2.0 base score of 7.1, rated high severity.
Is CVE-2009-1140 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1140?: CVE-2009-1140 primarily affects Microsoft Internet Explorer. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-1140?: 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-2009-1140 published?: CVE-2009-1140 was published on 2009-06-10 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:5.01:sp4:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:6:sp1:*:*:*:*:*:*

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