CVE-2026-45646: CWE-770: Allocation of Resources Without Limits or Throttling in Microsoft AspNet.OData
CVE-2026-45646 is a high-severity vulnerability in Microsoft AspNet.OData 7.0.0 involving allocation of resources without limits or throttling. This flaw allows an unauthorized attacker to cause a denial of service (DoS) over a network by exhausting resources. Microsoft has released an official fix to address this issue.
AI Analysis
Technical Summary
The vulnerability identified as CVE-2026-45646 affects Microsoft AspNet.OData version 7.0.0. It is classified under CWE-770, which involves allocation of resources without limits or throttling. This can be exploited by an unauthorized attacker remotely (network vector, no privileges or user interaction required) to cause denial of service by exhausting system resources. The CVSS v3.1 base score is 7.5 (high severity), reflecting the impact on availability only. Microsoft has published an official fix for this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation results in denial of service (DoS) due to uncontrolled resource allocation, impacting the availability of the affected AspNet.OData service. There is no impact on confidentiality or integrity according to the CVSS vector.
Mitigation Recommendations
An official fix is available from Microsoft. Users of AspNet.OData version 7.0.0 should apply the vendor-provided patch as documented in the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45646 to remediate this vulnerability.
CVE-2026-45646: CWE-770: Allocation of Resources Without Limits or Throttling in Microsoft AspNet.OData
Description
CVE-2026-45646 is a high-severity vulnerability in Microsoft AspNet.OData 7.0.0 involving allocation of resources without limits or throttling. This flaw allows an unauthorized attacker to cause a denial of service (DoS) over a network by exhausting resources. Microsoft has released an official fix to address this issue.
CVSS v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-45646 affects Microsoft AspNet.OData version 7.0.0. It is classified under CWE-770, which involves allocation of resources without limits or throttling. This can be exploited by an unauthorized attacker remotely (network vector, no privileges or user interaction required) to cause denial of service by exhausting system resources. The CVSS v3.1 base score is 7.5 (high severity), reflecting the impact on availability only. Microsoft has published an official fix for this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation results in denial of service (DoS) due to uncontrolled resource allocation, impacting the availability of the affected AspNet.OData service. There is no impact on confidentiality or integrity according to the CVSS vector.
Mitigation Recommendations
An official fix is available from Microsoft. Users of AspNet.OData version 7.0.0 should apply the vendor-provided patch as documented in the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45646 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T20:33:35.156Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45646","vendor":"Microsoft"}]
Threat ID: 6a566f6868715ace43e6b340
Added to database: 07/14/2026, 17:18:32 UTC
Last enriched: 07/15/2026, 02:03:28 UTC
Last updated: 07/15/2026, 03:01:28 UTC
Views: 6
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