CVE-2024-43565Network attack vector

Unauthenticated system crash via NAT out-of-bounds read

Published Oct 8, 2024 · Updated Aug 19, 2026

Out-of-bounds read in Windows Network Address Translation allows remote attackers to crash affected Windows systems over a network. Microsoft identifies the NAT component and out-of-bounds read but has not published the malformed input, code locus, or faulty read operation. No authentication or user interaction is required, and the documented consequence is a system crash without data disclosure or modification.

CVSS severity7.5
High
EPSS probability2.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Windows Network Address Translation allows remote attackers to crash affected Windows systems over a network. Microsoft identifies the NAT component and out-of-bounds read but has not published the malformed input, code locus, or faulty read operation. No authentication or user interaction is required, and the documented consequence is a system crash without data disclosure or modification.

The record

CVE
CVE-2024-43565
Published
Oct 8, 2024
Updated
Aug 19, 2026
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
CWE-125, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 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=10.0.10240.0 <10.0.10240.20796

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.20796
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.6414
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.7428
Microsoft · Windows 11, version 24H2version=10.0.26100.0 <10.0.26100.2033
Microsoft · Windows 11 version 21H2version=10.0.22000.0 <10.0.22000.3260
Microsoft · Windows 10 Version 21H2version=10.0.19043.0 <10.0.19044.5011
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.1189
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.7428
Microsoft · Windows 11 Version 22H3version=10.0.22631.0 <10.0.22631.4317
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.5011
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.6414
Microsoft · Windows 11 Version 23H2version=10.0.22631.0 <10.0.22631.4317
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.4317
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.7428
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.2762
Microsoft · Windows 10 Version 1809version=10.0.17763.0 <10.0.17763.6414

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-125Out-of-bounds Read
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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