How severe is CVE-2015-6164?

CVE-2015-6164 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2015-6164 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6164?

CVE-2015-6164 primarily affects Microsoft Internet Explorer. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-6164?

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

When was CVE-2015-6164 published?

CVE-2015-6164 was published on 2015-12-09 and last updated on 2026-06-17.

CVE-2015-6164

CVE-2015-6164 is a medium-severity vulnerability in Microsoft Internet Explorer with a CVSS 2.0 base score of 6.8. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Microsoft Internet Explorer
Published: 2015-12-09
Last modified: 2026-06-17

Description

Microsoft Internet Explorer 9 through 11 improperly implements a cross-site scripting (XSS) protection mechanism, which allows remote attackers to bypass the Same Origin Policy via a crafted web site, aka "Internet Explorer XSS Filter Bypass Vulnerability."

Frequently asked questions

What is CVE-2015-6164?: Microsoft Internet Explorer 9 through 11 improperly implements a cross-site scripting (XSS) protection mechanism, which allows remote attackers to bypass the Same Origin Policy via a crafted web site, aka "Internet Explorer XSS Filter Bypass Vulnerability."
How severe is CVE-2015-6164?: CVE-2015-6164 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2015-6164 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6164?: CVE-2015-6164 primarily affects Microsoft Internet Explorer. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6164?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6164 published?: CVE-2015-6164 was published on 2015-12-09 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:10:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:*

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