How severe is CVE-2013-3186?

CVE-2013-3186 has a CVSS 2.0 base score of 7.6, rated high severity.

Is CVE-2013-3186 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-3186?

CVE-2013-3186 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-2013-3186?

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-2013-3186 published?

CVE-2013-3186 was published on 2013-08-14 and last updated on 2026-06-16.

CVE-2013-3186

CVE-2013-3186 is a high-severity vulnerability in Microsoft Internet Explorer with a CVSS 2.0 base score of 7.6. Its EPSS exploit-prediction score of 10% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-264.

Key facts

Severity: High (CVSS 2.0 base score 7.6)
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Microsoft Internet Explorer
Published: 2013-08-14
Last modified: 2026-06-16

Description

The Protected Mode feature in Microsoft Internet Explorer 7 through 10 on Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT does not properly implement the Integrity Access Level (aka IL) protection mechanism, which allows remote attackers to obtain medium-integrity privileges by leveraging access to a low-integrity process, aka "Process Integrity Level Assignment Vulnerability."

Frequently asked questions

What is CVE-2013-3186?: The Protected Mode feature in Microsoft Internet Explorer 7 through 10 on Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT does not properly implement the Integrity Access Level (aka IL) protection mechanism, which allows remote attackers to obtain medium-integrity privileges by leveraging access to a low-integrity process, aka "Process Integrity Level Assignment Vulnerability."
How severe is CVE-2013-3186?: CVE-2013-3186 has a CVSS 2.0 base score of 7.6, rated high severity.
Is CVE-2013-3186 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-3186?: CVE-2013-3186 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-2013-3186?: 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-2013-3186 published?: CVE-2013-3186 was published on 2013-08-14 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:8:*:*:*:*:*:*:*

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