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CVE Record

CVE-2024-43544: Microsoft Simple Certificate Enrollment Protocol Denial of Service Vulnerability

Microsoft Simple Certificate Enrollment Protocol Denial of Service Vulnerability

HighCVSS 7.5Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This is a denial-of-service issue in Microsoft Simple Certificate Enrollment Protocol on supported and legacy Windows Server versions. A remote, unauthenticated attacker could affect availability, not data confidentiality or integrity, based on the CVSS vector. The business risk is disruption to certificate enrollment services where affected systems remain unpatched or exposed.

Executive priority

Prioritize remediation for certificate enrollment infrastructure and exposed Windows Servers. The issue affects availability, and certificate enrollment outages can disrupt device, user, or service authentication workflows even without data theft.

Technical view

CVE-2024-43544 is a CWE-400 resource-consumption vulnerability with CVSS 3.1 score 7.5: network attack vector, low complexity, no privileges, no user interaction, and high availability impact. Microsoft lists multiple Windows Server versions from 2008 through 2022, including Server Core variants. Microsoft’s advisory is tagged as patch guidance.

Likely exposure

Exposure is most likely on affected Windows Server systems using or exposing Microsoft Simple Certificate Enrollment Protocol. Internet or broad internal network reachability increases operational risk because the CVSS vector requires no authentication or user interaction.

Exploitation context

The provided sources do not show active exploitation. The CVE is not listed as KEV in the supplied bundle, and the CVSS exploit maturity value is unproven. Treat it as a credible availability risk, not confirmed in-the-wild exploitation.

Researcher notes

Public detail in the supplied sources is limited to product scope, CVSS, CWE-400, and Microsoft patch availability. Do not assume a specific vulnerable endpoint, crash condition, or exploit technique without additional vendor or reproducible evidence.

Mitigation direction

  • Apply Microsoft security updates for CVE-2024-43544 on all affected Windows Server systems.
  • Prioritize SCEP-facing servers reachable from untrusted or large internal networks.
  • Restrict network access to SCEP services where business requirements allow.
  • Check Microsoft guidance for version-specific prerequisites and servicing requirements.
  • Monitor certificate enrollment service availability after patching.

Validation and detection

  • Inventory Windows Server versions listed in the affected product set.
  • Identify systems where Microsoft Simple Certificate Enrollment Protocol is enabled or reachable.
  • Confirm patch compliance against Microsoft’s CVE-2024-43544 advisory.
  • Review monitoring for abnormal service failures or resource exhaustion symptoms.
  • Validate that access controls limit SCEP exposure to expected clients.
Prepared
Confidence
medium
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-400: 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-2024-43544 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-2024-43544Attack 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 Server 2008 Service Pack 26.0.6003.0Listed
MicrosoftWindows Server 2008 R2 Service Pack 16.1.7601.0Listed
MicrosoftWindows Server 2008 R2 Service Pack 1 (Server Core installation)6.1.7601.0Listed
MicrosoftWindows Server 2008 Service Pack 26.0.6003.0Listed
MicrosoftWindows Server 2008 Service Pack 2 (Server Core installation)6.0.6003.0Listed
MicrosoftWindows Server 20126.2.9200.0Listed
MicrosoftWindows Server 2012 (Server Core installation)6.2.9200.0Listed
MicrosoftWindows Server 2012 R26.3.9600.0Listed
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.9600.0Listed
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-400 · source CWE mapping

Uncontrolled Resource Consumption

Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.