CVE-2025-26682

highpriority · track · 1EPSS 0.017 · 77 %ileDEEUNLRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.71% (77th) EPSS

CVSS 7.5 · high

Is it mine?

54 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-26

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

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedASP.NET Core 8.0msrc_csaf
8.0.15:Security Update:https://github.com/dotnet/announcements/issues/352
https://github.com/dotnet/announcements/issues/352
FixedASP.NET Core 9.0msrc_csaf
9.0.4:Security Update:https://github.com/dotnet/announcements/issues/352
https://github.com/dotnet/announcements/issues/352
FixedMicrosoft Visual Studio 2022 version 17.10msrc_csaf
17.10.13:Security Update:https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes
https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes
FixedMicrosoft Visual Studio 2022 version 17.12msrc_csaf
17.12.7:Security Update:https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes
https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes
FixedMicrosoft Visual Studio 2022 version 17.13msrc_csaf
17.13.6:Security Update:https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes
https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes
FixedMicrosoft Visual Studio 2022 version 17.8msrc_csaf
17.8.20:Security Update:https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes
https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:Csecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · secure@microsoft.com USexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:Csecondary · NCSC-NL NL

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-770USCWE-770USCWE-770USCWE-770US

affected products (54)

Products and version ranges known to be affected.

Microsoft ASP.NET Core 8.0all versionscert_bundDEcpe:/a:microsoft:asp.net:core_8.0
Microsoft ASP.NET Core 9.0all versionscert_bundDEcpe:/a:microsoft:asp.net:core_9.0
Microsoft Visual Studio 2022 version 17.10all versionscert_bundDE
Microsoft Visual Studio 2022 version 17.12all versionscert_bundDE
Microsoft Visual Studio 2022 version 17.13all versionscert_bundDE
Microsoft Visual Studio 2022 version 17.8all versionscert_bundDE
Microsoft Visual Studio Codeall versionscert_bundDEcpe:/a:microsoft:visual_studio_code:-
Microsoft Visual Studio Tools for Applications (VSTA) 2019all versionscert_bundDEcpe:/a:microsoft:visual_studio:tools_for_applications_%28vsta%29_2019
Microsoft Visual Studio Tools for Applications (VSTA) 2022all versionscert_bundDEcpe:/a:microsoft:visual_studio:tools_for_applications_%28vsta%29_2022
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Microsoft Visual Studio 2022≤ version 17.10cert_bundDE
Microsoft Visual Studio 2022≤ version 17.12cert_bundDE
Microsoft Visual Studio 2022≤ version 17.13cert_bundDE
Microsoft Visual Studio 2022≤ version 17.8cert_bundDE
Microsoft ASP.NET Core 8.08.0 → 8.0.15enisa_euvdEU
Microsoft ASP.NET Core 9.09.0 → 9.0.4enisa_euvdEU
Microsoft Microsoft Visual Studio 2022 version 17.1017.10.0 → 17.10.13enisa_euvdEU
Microsoft Microsoft Visual Studio 2022 version 17.1217.12.0 → 17.12.7enisa_euvdEU
Microsoft Microsoft Visual Studio 2022 version 17.1317.13.0 → 17.13.6enisa_euvdEU
Microsoft Microsoft Visual Studio 2022 version 17.817.8.0 → 17.8.20enisa_euvdEU

showing 20 of 54

advisories (4)

Vendor and ecosystem advisories describing this.

NCSC-2025-0110Kwetsbaarheden verholpen in Microsoft Developer ToolsNL2025-04-08csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in Visual Studio en .NET
WID-SEC-W-2025-0748Microsoft DeveloperTools: Mehrere SchwachstellenDeutsch2025-04-08csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Visual Studio Code, Microsoft ASP.NET, Microsoft Visual Studio 2022 und Microsoft Visual Studio ausnutzen, um seine Privilegien zu erhöhen und einen Denial-of-Service-Zustand zu verursachen.
msrc_CVE-2025-26682ASP.NET Core and Visual Studio Denial of Service Vulnerability2025-04-08csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
BIT-aspnet-core-2025-26682ASP.NET Core and Visual Studio Denial of Service Vulnerability2025-07-10vendor · osvUS
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund ncsc_nl msrc_csaf osv NVD CVE.org MITRE

published 2025-04-08modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

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