Cyber Resilience

CVE-2025-26680

HighDDoS

Published: 08 April 2025

Published
08 April 2025
Modified
09 July 2025
KEV Added
Patch
CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.2377 96.1th percentile
Risk Priority 29 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-26680 is a high-severity Uncontrolled Resource Consumption (CWE-400) vulnerability in Microsoft Windows Server 2012. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 3.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

CVE-2025-26680 is an uncontrolled resource consumption vulnerability, tracked as CWE-400, that affects the Windows Standards-Based Storage Management Service. The flaw carries a CVSS 3.1 base score of 7.5 and permits remote denial of service without any authentication or user interaction.

An unauthenticated attacker can send crafted network requests to the affected service, triggering excessive resource consumption that renders the service unavailable. Because the attack requires no privileges and can be launched over the network, it poses a straightforward availability threat to Windows systems exposing the Standards-Based Storage Management Service.

Microsoft’s advisory for CVE-2025-26680 is published at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26680. The associated EPSS score rose from a low baseline to a peak of 0.4442 on 2026-02-03 before receding to its current value of 0.2377, indicating a period of increased exploitation interest after disclosure.

EU & UK References

Vulnerability details

Uncontrolled resource consumption in Windows Standards-Based Storage Management Service 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

microsoft
windows server 2012
r2
microsoft
windows server 2016
≤ 10.0.14393.7969
microsoft
windows server 2019
≤ 10.0.17763.7136
microsoft
windows server 2022
≤ 10.0.20348.3453
microsoft
windows server 2025
≤ 10.0.26100.3775

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.

addresses: CWE-400

Limiting concurrent sessions directly prevents uncontrolled resource consumption by capping the number of active sessions per user or account.

addresses: CWE-400

Analysis identifies uncontrolled resource consumption indicative of denial-of-service or abuse attempts.

addresses: CWE-400

Contingency plan testing includes resource exhaustion scenarios to verify recovery, making it harder for attackers to sustain exploits that cause uncontrolled consumption.

addresses: CWE-400

Updated contingency plans include current procedures to detect, contain, and recover from resource exhaustion, limiting an attacker's ability to sustain impact from uncontrolled consumption.

addresses: CWE-400

Alternate site allows resumption of operations if resource exhaustion at the primary site is exploited to cause unavailability.

addresses: CWE-400

Alternate telecommunications services enable resumption of essential functions when primary services become unavailable due to uncontrolled resource consumption.

addresses: CWE-400

The team can analyze and respond to resource exhaustion incidents, reducing the impact of attacks that exploit uncontrolled consumption weaknesses.

addresses: CWE-400

Timely maintenance support and spare parts enable rapid recovery from failures induced by uncontrolled resource consumption, shortening the impact window of denial-of-service attacks.

References