CVE-2025-26682
Published: 08 April 2025
Summary
CVE-2025-26682 is a high-severity Allocation of Resources Without Limits or Throttling (CWE-770) vulnerability in Microsoft Visual Studio 2022. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 7.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2025-26682 is a resource allocation without limits or throttling vulnerability, tracked as CWE-770, that affects ASP.NET Core and carries a CVSS 3.1 score of 7.5. The flaw permits excessive consumption of resources when the component processes network requests without applying throttling or quotas.
An unauthenticated attacker can trigger the issue remotely over a network to produce a denial-of-service condition that impacts availability while leaving confidentiality and integrity untouched.
The associated EPSS score rose from lower values to a peak of 0.4907 on 2026-02-03 before receding to the current 0.0956, showing a clear post-disclosure increase in exploitation interest. Additional guidance on mitigation appears in the Microsoft advisory referenced at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26682.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-10197
Vulnerability details
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
This control implements explicit throttling on session allocation, addressing the weakness of allocating resources without limits.
Plan testing exercises resource allocation limits and throttling during simulated failures, directly addressing weaknesses that allow unbounded resource use.
Contingency plan updates ensure recovery strategies address unbounded resource allocation, making it harder for attackers to exploit lack of throttling to cause prolonged outages.
Provides continuity when unbounded resource allocation at the primary site leads to exhaustion and downtime.
Alternate services allow operations to continue when primary allocation of resources lacks limits or throttling.
Explicit planning of security-related actions requires defining limits, windows, and resource allocations, making allocation without throttling far less likely.
Measures of performance include tracking allocation behavior and throttling effectiveness, reducing the window for resource exhaustion attacks.
Imposes an inactivity-based limit on network resource allocation, throttling the number of concurrently held connections.