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.
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.
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
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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.
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.