Windows LDAP - Lightweight Directory Access Protocol Denial of Service Vulnerability
Out-of-bounds read in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to deny service over a network.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for help- Published
- Sep 8, 2026
- Updated
- Sep 30, 2026
- EPSS
- 1.2% · 66th percentile
- CWE
- CWE-125
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
30
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.2%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- —
- CNA · microsoft
- 7.5
- NVD has not scored this yet; the score shown is the CNA’s.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| microsoft | windows 10 1607 | cpe:2.3:o:microsoft:windows_10_1607 |
| microsoft | windows 10 1809 | cpe:2.3:o:microsoft:windows_10_1809 |
| microsoft | windows 10 21h2 | cpe:2.3:o:microsoft:windows_10_21h2 |
| microsoft | windows 10 22h2 | cpe:2.3:o:microsoft:windows_10_22h2 |
| microsoft | windows 11 23h2 | cpe:2.3:o:microsoft:windows_11_23h2 |
| microsoft | windows 11 24h2 | cpe:2.3:o:microsoft:windows_11_24h2 |
| microsoft | windows 11 25h2 | cpe:2.3:o:microsoft:windows_11_25h2 |
| microsoft | windows 11 26h1 | cpe:2.3:o:microsoft:windows_11_26h1 |
| microsoft | windows server 2012 | cpe:2.3:o:microsoft:windows_server_2012 |
| microsoft | windows server 2016 | cpe:2.3:o:microsoft:windows_server_2016 |
| microsoft | windows server 2019 | cpe:2.3:o:microsoft:windows_server_2019 |
| microsoft | windows server 2022 | cpe:2.3:o:microsoft:windows_server_2022 |
and 1 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- microsoft windows server 2012all versions
- microsoft windows server 2012r2
- microsoft windows server 2016before 10.0.14393.9512
- microsoft windows server 2019before 10.0.17763.9245
- microsoft windows server 2022before 10.0.20348.5622
- microsoft windows server 2025before 10.0.26100.33438
Versions reported by the vendor
Affected version ranges reported by the assigning authority (microsoft). Independent of NVD's CPE analysis and usually ahead of it.
Microsoft Windows 10 Version 1607
- 10.0.14393.0 and later · before 10.0.14393.9512affected
Microsoft Windows 10 Version 1809
- 10.0.17763.0 and later · before 10.0.17763.9245affected
Microsoft Windows 10 Version 21H2
- 10.0.19044.0 and later · before 10.0.19044.7725affected
Microsoft Windows 10 Version 22H2
- 10.0.19045.0 and later · before 10.0.19045.7725affected
Microsoft Windows 11 version 23H2
- 10.0.22631.0 and later · before 10.0.22631.7582affected
Microsoft Windows 11 Version 23H2
- 10.0.22631.0 and later · before 10.0.22631.7582affected
Microsoft Windows 11 Version 24H2
- 10.0.26100.0 and later · before 10.0.26100.9445affected
Microsoft Windows 11 Version 25H2
- 10.0.26200.0 and later · before 10.0.26200.9445affected
Microsoft Windows 11 version 26H1
- 10.0.28000.0 and later · before 10.0.28000.2954affected
Microsoft Windows Server 2012
- 6.2.9200.0 and later · before 6.2.9200.26349affected
Microsoft Windows Server 2012 (Server Core installation)
- 6.2.9200.0 and later · before 6.2.9200.26349affected
Microsoft Windows Server 2012 R2
- 6.3.9600.0 and later · before 6.3.9600.23398affected
Same product
microsoft: all recordsOther highest-scoring records for the same primary product.
- CVE-2018-8174A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine RemKEV86Now
- CVE-2022-44698Windows SmartScreen Security Feature Bypass VulnerabilityKEV74This week
- CVE-2026-21510Windows Shell Security Feature Bypass VulnerabilityKEV72This week
- CVE-2026-21513MSHTML Framework Security Feature Bypass VulnerabilityKEV70This week
- CVE-2023-24880Windows SmartScreen Security Feature Bypass VulnerabilityKEV70This week
- CVE-2026-33824Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution VulnerabilityKEV69This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Windows 10 Version 1607 for 32-bit Systems | 10.0.14393.9512 · KB5123099 | Microsoft (MSRC) |
| Windows 10 Version 1607 for x64-based Systems | 10.0.14393.9512 · KB5123099 | Microsoft (MSRC) |
| Windows 10 Version 1809 for 32-bit Systems | 10.0.17763.9245 · KB5122876 | Microsoft (MSRC) |
| Windows 10 Version 1809 for x64-based Systems | 10.0.17763.9245 · KB5122876 | Microsoft (MSRC) |
| Windows 10 Version 21H2 for 32-bit Systems | 10.0.19044.7725 · KB5122878 | Microsoft (MSRC) |
| Windows 10 Version 21H2 for ARM64-based Systems | 10.0.19044.7725 · KB5122878 | Microsoft (MSRC) |
| Windows 10 Version 21H2 for x64-based Systems | 10.0.19044.7725 · KB5122878 | Microsoft (MSRC) |
| Windows 10 Version 22H2 for 32-bit Systems | 10.0.19045.7725 · KB5122878 | Microsoft (MSRC) |
| Windows 10 Version 22H2 for ARM64-based Systems | 10.0.19045.7725 · KB5122878 | Microsoft (MSRC) |
| Windows 10 Version 22H2 for x64-based Systems | 10.0.19045.7725 · KB5122878 | Microsoft (MSRC) |
| Windows 11 Version 23H2 for ARM64-based Systems | 10.0.22631.7582 · KB5122880 | Microsoft (MSRC) |
| Windows 11 Version 23H2 for x64-based Systems | 10.0.22631.7582 · KB5122880 | Microsoft (MSRC) |
| Windows 11 Version 24H2 for ARM64-based Systems | 10.0.26100.9445 · KB5124008 | Microsoft (MSRC) |
| Windows 11 Version 24H2 for x64-based Systems | 10.0.26100.9445 · KB5124008 | Microsoft (MSRC) |
| Windows 11 Version 25H2 for ARM64-based Systems | 10.0.26200.9445 · KB5124008 | Microsoft (MSRC) |
| Windows 11 Version 25H2 for x64-based Systems | 10.0.26200.9445 · KB5124008 | Microsoft (MSRC) |
| Windows 11 Version 26H1 for ARM64-based Systems | 10.0.28000.2954 · KB5124012 | Microsoft (MSRC) |
| Windows 11 version 26H1 for x64-based Systems | 10.0.28000.2954 · KB5124012 | Microsoft (MSRC) |
| Windows Server 2012 | 6.2.9200.26349 · KB5123065 | Microsoft (MSRC) |
| Windows Server 2012 (Server Core installation) | 6.2.9200.26349 · KB5123065 | Microsoft (MSRC) |
| Windows Server 2012 R2 | 6.3.9600.23398 · KB5123066 | Microsoft (MSRC) |
| Windows Server 2012 R2 (Server Core installation) | 6.3.9600.23398 · KB5123066 | Microsoft (MSRC) |
| Windows Server 2016 | 10.0.14393.9512 · KB5123099 | Microsoft (MSRC) |
| Windows Server 2016 (Server Core installation) | 10.0.14393.9512 · KB5123099 | Microsoft (MSRC) |
| Windows Server 2019 | 10.0.17763.9245 · KB5122876 | Microsoft (MSRC) |
| Windows Server 2019 (Server Core installation) | 10.0.17763.9245 · KB5122876 | Microsoft (MSRC) |
| Windows Server 2022 | 10.0.20348.5622 · KB5122882 | Microsoft (MSRC) |
| Windows Server 2022 (Server Core installation) | 10.0.20348.5622 · KB5122882 | Microsoft (MSRC) |
| Windows Server 2025 | 10.0.26100.33438 · KB5122871 | Microsoft (MSRC) |
| Windows Server 2025 (Server Core installation) | 10.0.26100.33438 · KB5122871 | Microsoft (MSRC) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2026-696190 days apartWindows exFAT File System Elevation of Privilege Vulnerability35Monitor
- CVE-2026-697170 days apartWindows Group Policy Elevation of Privilege Vulnerability35Monitor
- CVE-2026-800960 days apartWindows Remote Desktop Services Elevation of Privilege Vulnerability35Monitor
- CVE-2025-48822427 days apartWindows Hyper-V Discrete Device Assignment (DDA) Remote Code Execution Vulnerability34Monitor
- CVE-2026-693320 days apartWindows NTFS Elevation of Privilege Vulnerability32Monitor
- CVE-2026-695050 days apartWindows NTFS Elevation of Privilege Vulnerability32Monitor
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-125 · Out-of-bounds ReadCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.