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CVE Record

CVE-2024-43565: Windows Network Address Translation (NAT) Denial of Service Vulnerability

Windows Network Address Translation (NAT) Denial of Service Vulnerability

HighCVSS 7.5Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This Microsoft Windows NAT flaw can let a remote, unauthenticated attacker disrupt availability. The known impact is denial of service, not data theft or code execution. Because affected products include many Windows 10, Windows 11, and Windows Server releases, treat this as a broad patch-management priority for systems using or exposed through Windows NAT functionality.

Executive priority

High priority for routine security patching, especially where Windows hosts support routing, virtualization, lab networks, or NAT-dependent services. The business risk is service outage rather than compromise of confidentiality or integrity.

Technical view

CVE-2024-43565 is a Windows Network Address Translation denial-of-service vulnerability associated with CWE-125. CVSS 3.1 is 7.5 with network attack vector, low complexity, no privileges, no user interaction, unchanged scope, and high availability impact only. Microsoft lists official remediation through its Update Guide.

Likely exposure

Exposure is most relevant to listed Windows client and server versions, especially assets where Windows NAT functionality is enabled or reachable over a network. The source bundle does not provide detailed configuration prerequisites beyond Microsoft’s affected-product list.

Exploitation context

The CVSS vector supports remote, unauthenticated denial of service. The exploit maturity is listed as unproven, and this CVE is not in CISA KEV in the provided data. There is no source-bundle evidence of active exploitation.

Researcher notes

Key missing detail is the exact vulnerable code path and configuration trigger. Use Microsoft’s advisory as the authority for affected builds and remediation. Avoid assuming code execution, data exposure, or active exploitation without additional cited evidence.

Mitigation direction

  • Apply the Microsoft security update for CVE-2024-43565.
  • Prioritize internet-facing or routing-related Windows Server assets first.
  • Check MSRC for exact update packages and supersedence details.
  • Limit unnecessary network exposure to Windows NAT functionality where operationally feasible.

Validation and detection

  • Inventory affected Windows versions listed by Microsoft.
  • Verify the relevant Microsoft security update is installed.
  • Identify systems using Windows NAT or routing features.
  • Confirm monitoring covers availability failures on NAT-dependent services.
Prepared
Confidence
high
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-125: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2024-43565 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.5 (3.1)
Known Exploited
No
Published

Vector: 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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: yesTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C3.93.6microsoft

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2024-43565Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: 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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
MicrosoftWindows 10 Version 150710.0.10240.0Listed
MicrosoftWindows 10 Version 160710.0.14393.0Listed
MicrosoftWindows 10 Version 180910.0.17763.0Listed
MicrosoftWindows 10 Version 21H210.0.19043.0Listed
MicrosoftWindows 10 Version 22H210.0.19045.0Listed
MicrosoftWindows 11 version 21H210.0.22000.0Listed
MicrosoftWindows 11 version 22H210.0.22621.0Listed
MicrosoftWindows 11 version 22H310.0.22631.0Listed
MicrosoftWindows 11 Version 23H210.0.22631.0Listed
MicrosoftWindows 11 Version 24H210.0.26100.0Listed
MicrosoftWindows Server 201610.0.14393.0Listed
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0Listed
MicrosoftWindows Server 201910.0.17763.0Listed
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0Listed
MicrosoftWindows Server 202210.0.20348.0Listed
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation)10.0.25398.0Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-125 · source CWE mapping

Out-of-bounds Read

Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.