CVE-2026-62795Network attack vector

Remote code execution via LDAP use-after-free

Published Aug 11, 2026 · Updated Aug 25, 2026

Use-after-free in Windows LDAP on affected Microsoft Windows releases allows remote attackers to execute code over a network. Microsoft has not disclosed the LDAP message, code path, or lifetime error that causes the component to access freed memory. Exploitation requires no privileges but does require user interaction; successful exploitation executes code in the affected LDAP process.

CVSS severity8.8
High
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Windows LDAP on affected Microsoft Windows releases allows remote attackers to execute code over a network. Microsoft has not disclosed the LDAP message, code path, or lifetime error that causes the component to access freed memory. Exploitation requires no privileges but does require user interaction; successful exploitation executes code in the affected LDAP process.

The record

CVE
CVE-2026-62795
Published
Aug 11, 2026
Updated
Aug 25, 2026
Vendor
Microsoft
Product
Windows Server 2019
Classifications
CWE-416, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.17763.0 <10.0.17763.9121

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.9121
Microsoft · Windows Server 2025 (Server Core installation)version=10.0.26100.0 <10.0.26100.33296
Microsoft · Windows 11, version 25H2version=10.0.26200.0 <10.0.26200.9168
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.9418
Microsoft · Windows 11, version 24H2version=10.0.26100.0 <10.0.26100.9168
Microsoft · Windows Server 2012 (Server Core installation)version=6.2.9200.0 <6.2.9200.26280
Microsoft · Windows Server 2012version=6.2.9200.0 <6.2.9200.26280
Microsoft · Windows 10 Version 21H2version=10.0.19044.0 <10.0.19044.7663
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.9418
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.7663
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.23338
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.9121
Microsoft · Windows 11, version 26H1version=10.0.28000.0 <10.0.28000.2704
Microsoft · Windows 11 Version 23H2version=10.0.22631.0 <10.0.22631.7517
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.9418
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.5499
Microsoft · Windows Server 2025version=10.0.26100.0 <10.0.26100.33296
Microsoft · Windows 10 Version 1809version=10.0.17763.0 <10.0.17763.9121
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.23338

Published CVSS scores

7.7MicrosoftCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
8.8MicrosoftCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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