CVE-2025-55315
ASP.NET Security Feature Bypass Vulnerability
CRITICAL 9.9
At a glance
- Source
- NVD
- EPSS
- EPSS 66.53 % · percentile 99 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- microsoft
- NVD status
- Modified
Description
Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an authorized attacker to bypass a security feature over a network.
Weaknesses (CWE)
- CWE-444 — Inconsistent Interpretation of HTTP Requests
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L/E:U/RL:O/RC:C | microsoft |
| CVSS 3.1 | CRITICAL 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L | NVD · secure@microsoft.com (Secondary) |
Advisories
- GHSA-5rrx-jjjq-q2r5 — Microsoft Security Advisory CVE-2025-55315: .NET Security Feature Bypass Vulnerability
European references
- ENISA EUVD · EUVD-2025-34426
- GCVE · GCVE-0-2025-55315
CERT-FR advisories
- CERTFR-2026-AVI-0796 — Multiples vulnérabilités dans Tenable Identity Exposure · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0969 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0967 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0958 — Multiples vulnérabilités dans Tenable Identity Exposure · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0945 — Vulnérabilité dans Qnap NetBak PC Agent · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0897 — Multiples vulnérabilités dans Tenable Identity Exposure · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0882 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0880 — Multiples vulnérabilités dans Microsoft .Net · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*≥ 2.3.0 < 2.3.6cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*≥ 8.0.0 < 8.0.21cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*≥ 9.0.0 < 9.0.10cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*≥ 17.10.0 < 17.10.20cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*≥ 17.12.10 < 17.12.13cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*≥ 17.14.0 < 17.14.17
Affected products
| Product | Versions |
|---|---|
| Microsoft · ASP.NET Core 2.3 | affected 2.3 < 2.3.6 |
| Microsoft · ASP.NET Core 8.0 | affected 8.0 < 8.0.21 |
| Microsoft · ASP.NET Core 9.0 | affected 9.0 < 9.0.10 |
| Microsoft · Microsoft Visual Studio 2022 version 17.10 | affected 17.10.0 < 17.10.20 |
| Microsoft · Microsoft Visual Studio 2022 version 17.12 | affected 17.12.0 < 17.12.13 |
| Microsoft · Microsoft Visual Studio 2022 version 17.14 | affected 17.14.0 < 17.14.17 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |