CVE-2026-45646 — HIGH (7.5)

Q: What is CVE-2026-45646?

CVE-2026-45646 is a vulnerability with a CVSS score of 7.5 (HIGH). Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Q: How severe is CVE-2026-45646?

CVE-2026-45646 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-45646?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Asp.Net Core Odata, Microsoft Odata Web Api.

Vulnerability Description

Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Asp.Net Core Odata	< 9.5.0
Microsoft	Odata Web Api	< 7.8.0

Related Weaknesses (CWE)

CWE-770

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45646Vendor Advisory

FAQ

What is CVE-2026-45646?

CVE-2026-45646 is a vulnerability with a CVSS score of 7.5 (HIGH). Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

How severe is CVE-2026-45646?

CVE-2026-45646 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-45646?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Asp.Net Core Odata, Microsoft Odata Web Api.