EUVD-2026-73494
GHSA-qg59-3hrq-3q82
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Unauthenticated network crash with no credential or interaction requirement; impact strictly availability-only with no confidentiality or integrity effect.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
5DescriptionCVE.org
Out-of-bounds read in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to deny service over a network.
AnalysisAI
Remote denial of service in Windows LDAP affects all major Windows desktop and server releases from Windows 10 1607 through Windows Server 2025, allowing unauthenticated network attackers to crash the LDAP service by sending a malformed packet that triggers an out-of-bounds read (CWE-125). The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) confirms trivial, credential-free exploitation with high availability impact and no confidentiality or integrity loss. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions are required - the CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms remote unauthenticated exploitation with low attack complexity. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.5 High rating with AV:N/AC:L/PR:N/UI:N reflects genuinely low exploitation complexity - no credentials, no user interaction, and no special preconditions are required beyond network reachability to a Windows LDAP listener. … 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 for the installed Windows version - patches are available for all affected releases per vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69428. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Windows 10 and Windows Server systems to identify those running LDAP services and accessible via network. …
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Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Buffer Overflow
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External POC / Exploit Code
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