How severe is CVE-2015-1659?

CVE-2015-1659 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2015-1659 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-1659?

CVE-2015-1659 affects Microsoft Internet Explorer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-1659?

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

When was CVE-2015-1659 published?

CVE-2015-1659 was published on 2015-04-14 and last updated on 2026-06-17.

CVE-2015-1659

CVE-2015-1659 is a critical-severity vulnerability in Microsoft Internet Explorer with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 16% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 16% (96th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Internet Explorer
Published: 2015-04-14
Last modified: 2026-06-17

Description

Microsoft Internet Explorer 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Internet Explorer Memory Corruption Vulnerability," a different vulnerability than CVE-2015-1662 and CVE-2015-1665.

Frequently asked questions

What is CVE-2015-1659?: Microsoft Internet Explorer 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Internet Explorer Memory Corruption Vulnerability," a different vulnerability than CVE-2015-1662 and CVE-2015-1665.
How severe is CVE-2015-1659?: CVE-2015-1659 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2015-1659 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-1659?: CVE-2015-1659 affects Microsoft Internet Explorer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-1659?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2015-1659 published?: CVE-2015-1659 was published on 2015-04-14 and last updated on 2026-06-17.

References

Affected products (1)

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

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