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Windows Container Manager Service EUVDEUVD-2026-73064

| CVE-2026-69771 MEDIUM
Improper Link Resolution Before File Access (CWE-59)
2026-09-08 secure@microsoft.com GHSA-qjfr-h47v-47c8
4.7
CVSS 3.1 · Vendor: microsoft
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Severity by source

Vendor (microsoft) PRIMARY
4.7 MEDIUM
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
vuln.today AI
4.7 MEDIUM

Local symlink race requires low privilege and high complexity; only confidentiality is impacted as no write or availability consequence is described.

3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0 AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (microsoft).

CVSS VectorVendor: microsoft

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

Lifecycle Timeline

4
Metadata Corrected
Sep 09, 2026 - 05:40 vuln.today
tag: Authentication Bypass removed
Analysis Generated
Sep 09, 2026 - 05:03 vuln.today
Patch available
Sep 08, 2026 - 18:35 EUVD
CVE Published
Sep 08, 2026 - 18:19 cve.org
MEDIUM 4.7

DescriptionCVE.org

Improper link resolution before file access ('link following') in Windows Container Manager Service allows an authorized attacker to bypass a security feature locally.

AnalysisAI

Symlink-following in Windows Container Manager Service allows a local low-privileged authenticated user to bypass a security feature and read files outside the intended access boundary. Affected are Windows 11 versions 23H2, 24H2, 25H2, and 26H1 across specific build ranges, per EUVD. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires an existing local user account on the target Windows 11 system (PR:L), meaning the attacker must already have some form of authenticated access - remote unauthenticated attackers cannot exploit this directly. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS base score of 4.7 reflects a genuinely moderate, context-bounded risk. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Apply the Microsoft security update that raises each affected Windows 11 build to or above the patched thresholds: 10.0.22631.7582 for 23H2, 10.0.26100.9445 for 24H2, 10.0.26200.9445 for 25H2, and 10.0.28000.2954 for 26H1. … Detailed patch versions, workarounds, and compensating controls in full report.

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EUVD-2026-73064 vulnerability details – vuln.today

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