How severe is CVE-2016-3203?

CVE-2016-3203 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-3203 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 33% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-3203?

CVE-2016-3203 primarily affects Microsoft Edge. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-3203?

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-2016-3203 published?

CVE-2016-3203 was published on 2016-06-16 and last updated on 2026-06-17.

CVE-2016-3203

CVE-2016-3203 is a high-severity vulnerability in Microsoft Edge with a CVSS 3.x base score of 7.8. Its EPSS exploit-prediction score of 33% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 9.3
EPSS exploit prediction: 33% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Microsoft Edge
Published: 2016-06-16
Last modified: 2026-06-17

Description

Microsoft Windows 8.1, Windows Server 2012 Gold and R2, Windows 10 Gold and 1511, and Microsoft Edge allow remote attackers to execute arbitrary code via a crafted PDF document, aka "Windows PDF Remote Code Execution Vulnerability."

Frequently asked questions

What is CVE-2016-3203?: Microsoft Windows 8.1, Windows Server 2012 Gold and R2, Windows 10 Gold and 1511, and Microsoft Edge allow remote attackers to execute arbitrary code via a crafted PDF document, aka "Windows PDF Remote Code Execution Vulnerability."
How severe is CVE-2016-3203?: CVE-2016-3203 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-3203 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 33% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-3203?: CVE-2016-3203 primarily affects Microsoft Edge. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-3203?: 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-2016-3203 published?: CVE-2016-3203 was published on 2016-06-16 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:microsoft:edge:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1511:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*

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