What is CVE-2025-26682?

CVE-2025-26682 is a high-severity vulnerability in Microsoft Asp.net Core 8.0, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2025-04-08.

How severe is CVE-2025-26682?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Microsoft Asp.net Core 8.0

CVE-2025-26682

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

EPSS: 0.096 (93.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). 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.

Affected products

Microsoft Asp.net Core 8.0 — versions 8.0
Microsoft Asp.net Core 9.0 — versions 9.0
Microsoft Visual Studio 2022 Version 17.10 — versions 17.10.0
Microsoft Visual Studio 2022 Version 17.12 — versions 17.12.0
Microsoft Visual Studio 2022 Version 17.13 — versions 17.13.0
Microsoft Visual Studio 2022 Version 17.8 — versions 17.8.0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

ASP.NET Core and Visual Studio Denial of Service Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2025-26682?: CVE-2025-26682 is a high-severity vulnerability in Microsoft Asp.net Core 8.0, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2025-04-08.
How severe is CVE-2025-26682?: High severity. CVSS v3 base score is 7.5 out of 10.