CVE-2023-36395Network attack vector

Service interruption via undisclosed integer overflow

Published Nov 14, 2023 · Updated Oct 8, 2025

Integer overflow in Windows Deployment Services on affected Windows Server builds allows remote attackers to interrupt service over the network. Microsoft identifies the weakness as integer overflow but has not disclosed the affected function, request field, or arithmetic operation. Exploitation requires no authentication or user interaction and affects availability only; triggering the flaw can stop WDS service delivery.

CVSS severity7.5
High
EPSS probability2.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Windows Deployment Services on affected Windows Server builds allows remote attackers to interrupt service over the network. Microsoft identifies the weakness as integer overflow but has not disclosed the affected function, request field, or arithmetic operation. Exploitation requires no authentication or user interaction and affects availability only; triggering the flaw can stop WDS service delivery.

The record

CVE
CVE-2023-36395
Published
Nov 14, 2023
Updated
Oct 8, 2025
Vendor
Microsoft
Product
Windows Server 2019
Classifications
CWE-190, CAPEC-92, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 14, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 8, 2025Record 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 <10.0.17763.5122

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.5122
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.6452
Microsoft · Windows Server 2012 (Server Core installation)version=6.2.9200.0 <6.2.9200.24569
Microsoft · Windows Server 2012version=6.2.9200.0 <6.2.9200.24569
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.531
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.6452
Microsoft · Windows Server 2008 R2 Service Pack 1version=6.1.7601.0 <6.1.7601.26816
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)version=6.1.7601.0 <6.1.7601.26816
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.21668
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.5122
Microsoft · Windows Server 2008 Service Pack 2version=6.0.6003.0 <6.0.6003.22367
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.2113
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.21668
Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)version=6.0.6003.0 <6.0.6003.22367

Published CVSS scores

7.5Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-190Integer Overflow or Wraparound
CAPEC-92Forced Integer Overflow
T1499.004Application or System Exploitation

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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