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Vulnerability Assessment

Weakness
CWE
CWE-209
OWASP Top 10:2025
A10:2025 - Mishandling of Exceptional Conditions
ASVS 5.0
V16 - Security Logging and Error Handling Error message sanitization
MITRE ATT&CK

1 technique across 1 tactic: Discovery

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.5% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 09, 2026

Windows Error Reporting (WER) on multiple Windows versions leaks sensitive information into generated error messages that a locally authenticated low-privileged user can read. The vulnerability stems from CWE-209 (sensitive data embedded in diagnostic output) and requires only local access with standard user privileges to exploit. Microsoft has released patches across all affected Windows builds; no public exploit code or active exploitation has been identified at time of analysis.

Affected VersionsENISA

Windows Server 2016 10.0.14393.0 <10.0.14393.9512
Windows 11 version 26H1 10.0.28000.0 <10.0.28000.2954
Windows Server 2016 (Server Core installation) 10.0.14393.0 <10.0.14393.9512
Windows 10 Version 22H2 10.0.19045.0 <10.0.19045.7725
Windows 10 Version 1809 10.0.17763.0 <10.0.17763.9245
Windows 11 Version 24H2 10.0.26100.0 <10.0.26100.9445
Windows Server 2025 (Server Core installation) 10.0.26100.0 <10.0.26100.33438
Windows Server 2012 R2 6.3.9600.0 <6.3.9600.23397
Windows 10 Version 1607 10.0.14393.0 <10.0.14393.9512
Windows Server 2019 (Server Core installation) 10.0.17763.0 <10.0.17763.9245
Windows Server 2022 10.0.20348.0 <10.0.20348.5622
Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 <6.3.9600.23397
Windows Server 2025 10.0.26100.0 <10.0.26100.33438
Windows 11 Version 23H2 10.0.22631.0 <10.0.22631.7582
Windows 10 Version 21H2 10.0.19044.0 <10.0.19044.7725
Windows 11 Version 25H2 10.0.26200.0 <10.0.26200.9445
Windows Server 2019 10.0.17763.0 <10.0.17763.9245

Affected Packages

euvd windows_10_version_1607 fix: 10.0.14393.9512
euvd windows_10_version_1809 fix: 10.0.17763.9245
euvd windows_10_version_21h2 fix: 10.0.19044.7725
euvd windows_10_version_22h2 fix: 10.0.19045.7725
euvd windows_11_version_23h2 fix: 10.0.22631.7582
euvd windows_11_version_24h2 fix: 10.0.26100.9445
euvd windows_11_version_25h2 fix: 10.0.26200.9445
euvd windows_11_version_26h1 fix: 10.0.28000.2954
euvd windows_server_2012_r2 fix: 6.3.9600.23397
euvd windows_server_2012_r2_server_core_installation fix: 6.3.9600.23397
euvd windows_server_2016 fix: 10.0.14393.9512
euvd windows_server_2016_server_core_installation fix: 10.0.14393.9512
euvd windows_server_2019 fix: 10.0.17763.9245
euvd windows_server_2019_server_core_installation fix: 10.0.17763.9245
euvd windows_server_2022 fix: 10.0.20348.5622
euvd windows_server_2025 fix: 10.0.26100.33438
euvd windows_server_2025_server_core_installation fix: 10.0.26100.33438

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 17 packages in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Severity by source

Vendor (microsoft) PRIMARY 5.5 MEDIUM
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Primary rating from Vendor (microsoft) · only source for this CVE.

CVSS VectorVendor: microsoft

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

2
Patch available
Sep 08, 2026 - 18:35 EUVD
CVE Published
Sep 08, 2026 - 18:19 cve.org
MEDIUM 5.5

DescriptionCVE.org

Generation of error message containing sensitive information in Windows Error Reporting allows an authorized attacker to disclose information locally.

Threat Intelligence Overview

EPSS Score
0.5%
Top 61% exploitable
Vendor Status
Publicly Disclosed:No
Exploited:No
Latest Software Release:Exploitation Unlikely
Data Quality
5 sources
Confidence: Medium
EUVD NVD CVE.org EPSS Vulnrichment MSRC

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.5%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +28
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

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Same weakness CWE-209 – Error Message Information Leak

View all
CVE-2025-47813 MEDIUM POC
4.3
CVE-2025-62168 HIGH POC
7.5
CVE-2017-7551 CRITICAL POC
9.8
CVE-2026-48039 CRITICAL POC
9.1
CVE-2022-31140 CRITICAL POC
9.1
CVE-2024-23689 HIGH POC
8.8
CVE-2018-17961 HIGH POC
8.6
CVE-2023-37306 HIGH POC
7.5

Same technique Information Disclosure

View all
CVE-2019-2725 CRITICAL POC
9.8
CVE-2021-34523 CRITICAL POC
9.0
CVE-2013-2251 CRITICAL POC
9.8
CVE-2017-5638 CRITICAL POC
9.8
CVE-2025-24813 CRITICAL POC
9.8
CVE-2025-68613 HIGH POC
8.8
CVE-2015-1701 HIGH POC
7.8

References

Advisories & patches
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-69684 REF https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69684

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