CVE-2019-0948

CVE-2019-0948 is a medium-severity vulnerability in Microsoft Windows 10 with a CVSS 3.x base score of 4.7. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-611.

Key facts

• Severity: Medium (CVSS 3.x base score 4.7)
• CVSS v2: 4.3
• EPSS exploit prediction: 13% (96th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-611
• Affected product: Microsoft Windows 10
• Published: 2019-06-12
• Last modified: 2026-06-17

Description

An information disclosure vulnerability exists in the Windows Event Viewer (eventvwr.msc) when it improperly parses XML input containing a reference to an external entity. An attacker who successfully exploited this vulnerability could read arbitrary files via an XML external entity (XXE) declaration. To exploit the vulnerability, an attacker could create a file containing specially crafted XML content and convince an authenticated user to import the file. The update addresses the vulnerability by modifying the way that the Event Viewer parses XML input.

Frequently asked questions

What is CVE-2019-0948?

An information disclosure vulnerability exists in the Windows Event Viewer (eventvwr.msc) when it improperly parses XML input containing a reference to an external entity. An attacker who successfully exploited this vulnerability could read arbitrary files via an XML external entity (XXE) declaration. To exploit the vulnerability, an attacker could create a file containing specially crafted XML content and convince an authenticated user to import the file. The update addresses the vulnerability by modifying the way that the Event Viewer parses XML input.

How severe is CVE-2019-0948?

CVE-2019-0948 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-0948 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-0948?

CVE-2019-0948 primarily affects Microsoft Windows 10. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-0948?

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

When was CVE-2019-0948 published?

CVE-2019-0948 was published on 2019-06-12 and last updated on 2026-06-17.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-0948
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0948
• https://www.zerodayinitiative.com/advisories/ZDI-19-641/

Affected products (19)

• cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
• 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:*:*:*:*:itanium:*
• cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*

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Other CWE-611 (Improper Restriction of XML External Entity Reference (XXE)) vulnerabilities

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