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CVE Record

CVE-2026-24297: Windows Kerberos Security Feature Bypass Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Kerberos allows an unauthorized attacker to bypass a security feature over a network.

MediumCVSS 6.5Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This is a Microsoft Windows Kerberos security feature bypass. An unauthenticated network attacker may be able to take advantage of a race condition to bypass a security control. The listed affected systems are older Windows client and server releases. Severity is medium, but Kerberos relevance means enterprise identity environments should treat remediation as operationally important.

Executive priority

Treat this as a scheduled but timely patching item. It is not confirmed exploited in the provided evidence, but unauthenticated network reachability in Kerberos makes delayed remediation risky in Windows enterprise environments.

Technical view

CVE-2026-24297 is a CWE-362 race condition in Windows Kerberos caused by improper synchronization during concurrent use of a shared resource. The CVSS 3.1 score is 6.5 with network attack vector, low complexity, no privileges, and no user interaction. Expected impact is limited confidentiality and integrity loss, with no availability impact stated.

Likely exposure

Exposure is limited to the Microsoft Windows versions listed in the source bundle, including Windows 10 1607/1809/21H2/22H2 and Windows Server 2012 through 2019 variants. Assess systems that use Windows Kerberos authentication, especially identity-adjacent servers and domain-joined endpoints.

Exploitation context

The provided sources do not show active exploitation. The CVE is not marked KEV, and the CVSS exploit code maturity is unproven. The issue is remotely reachable and unauthenticated, which raises priority despite medium severity.

Researcher notes

The public detail is sparse: race condition, Windows Kerberos, security feature bypass, network reachable, unauthenticated. No exploit mechanics, affected component internals, or detection logic are provided. Avoid assuming domain-controller-only impact unless Microsoft clarifies scope.

Mitigation direction

  • Apply the Microsoft security update referenced by the MSRC advisory.
  • Prioritize Kerberos-relevant servers and domain-joined Windows systems.
  • Confirm whether affected Windows versions remain in supported patch channels.
  • Check Microsoft guidance for any superseding updates or operational notes.
  • Plan retirement or isolation for unsupported affected systems.

Validation and detection

  • Inventory Windows versions against the affected product list.
  • Verify the relevant Microsoft update is installed on affected systems.
  • Confirm Kerberos-facing systems are included in patch compliance reporting.
  • Review Microsoft advisory status before closing remediation.
  • Document exceptions for systems that cannot be patched immediately.
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

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cwe · low confidence lookup

CWE-362: 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.

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cve · low confidence lookup

CVE-2026-24297 mapping review

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

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/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
6.5CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C3.92.5microsoft

Vulnerability scoring details

Base CVSS 3.1 score

6.5Medium
CVSS 3.1 vector shape for CVE-2026-24297Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/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 160710.0.14393.0Listed
MicrosoftWindows 10 Version 180910.0.17763.0Listed
MicrosoftWindows 10 Version 21H210.0.19044.0Listed
MicrosoftWindows 10 Version 22H210.0.19045.0Listed
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
Weakness

CWE details

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

CWE-362 · source CWE mapping

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.