How severe is CVE-2017-8728?

CVE-2017-8728 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-8728 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-8728?

CVE-2017-8728 primarily affects Microsoft Windows 8.1. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-8728?

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-2017-8728 published?

CVE-2017-8728 was published on 2017-09-13 and last updated on 2026-06-17.

CVE-2017-8728

CVE-2017-8728 is a high-severity vulnerability in Microsoft Windows 8.1 with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 22% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.6
EPSS exploit prediction: 22% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Microsoft Windows 8.1
Published: 2017-09-13
Last modified: 2026-06-17

Description

Microsoft Windows PDF Library in Microsoft Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allows an attacker to execute arbitrary code in the context of the current user, due to the way that Windows PDF Library handles objects in memory, aka "Windows PDF Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8737.

Frequently asked questions

What is CVE-2017-8728?: Microsoft Windows PDF Library in Microsoft Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allows an attacker to execute arbitrary code in the context of the current user, due to the way that Windows PDF Library handles objects in memory, aka "Windows PDF Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8737.
How severe is CVE-2017-8728?: CVE-2017-8728 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-8728 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-8728?: CVE-2017-8728 primarily affects Microsoft Windows 8.1. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-8728?: 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-2017-8728 published?: CVE-2017-8728 was published on 2017-09-13 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_rt_8.1:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:edge:*:*:*:*:*:*:*:*

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