CVE-2026-85320

Analyzed Analyzed - Analysis Complete

Use of Uninitialized Resource in Windows Print Spooler Components Allows Local Information Disclosure

Publication date: 2026-10-13

Last updated on: 2026-10-29

Assigner: Microsoft Corporation

Description

Use of uninitialized resource in Windows Print Spooler Components allows an authorized attacker to disclose information locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-10-13

Last Modified

2026-10-29

Generated

2026-11-08

AI Q&A

2026-10-14

EPSS Evaluated

2026-11-07

NVD

CVE-2026-85320

EUVD

EUVD-2026-99459

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_server_2012	*
microsoft	windows_10_1607	to 10.0.14393.9612 (exc)
microsoft	windows_10_1607	to 10.0.14393.9612 (exc)
microsoft	windows_10_1809	to 10.0.17763.9376 (exc)
microsoft	windows_10_1809	to 10.0.17763.9376 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7807 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7807 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7807 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7652 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7652 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9711 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9711 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9711 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9711 (exc)
microsoft	windows_11_26h1	to 10.0.28000.3231 (exc)
microsoft	windows_11_26h1	to 10.0.28000.3231 (exc)
microsoft	windows_11_26h2	to 10.0.26300.9711 (exc)
microsoft	windows_11_26h2	to 10.0.26300.9711 (exc)
microsoft	windows_server_2016	to 10.0.14393.9612 (exc)
microsoft	windows_server_2019	to 10.0.17763.9376 (exc)
microsoft	windows_server_2025	to 10.0.26100.33650 (exc)
microsoft	windows_server_2022	to 10.0.20348.5761 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7807 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7807 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7807 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-908	The product uses or accesses a resource that has not been initialized.

Attack-Flow Graph

Executive Summary

This vulnerability involves the use of an uninitialized resource in Windows Print Spooler Components. An authorized attacker can exploit this to disclose information locally on affected systems.

Detection Guidance

This vulnerability involves uninitialized resources in Windows Print Spooler Components. Detection typically requires monitoring for unusual print spooler behavior or memory access patterns. Check for unauthorized print job submissions or spoolsv.exe crashes. Use Event Viewer to inspect Windows Logs for Print or System events related to print spooler failures.

Impact Analysis

An attacker could gain access to sensitive information stored on your system by exploiting this vulnerability. Since it requires local access, physical or network access to the machine is necessary.

Compliance Impact

This vulnerability allows local information disclosure due to uninitialized resources in Windows Print Spooler Components. Such information leaks could potentially expose sensitive data, which may violate GDPR's data protection principles or HIPAA's confidentiality requirements if personal or health information is involved.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows Print Spooler Components vulnerability. Monitor Microsoft's update guide for patches and install them as soon as available.

Hi! I’m here to help you understand CVE-2026-85320. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70

EPSS Chart

Security Radar

News mentioning this vulnerability

Loading related security news...