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    CVE-2025-55315

    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.

    Published:Oct 14, 2025
    Last Modified:Feb 22, 2026
    EPS:Oct 14, 2025
    EPSS Score:0.00365
    CVSS Score:9.9

    Affected Products

    Vendor
    Microsoft
    Product
    Asp.net Core
    Vendor
    Microsoft
    Product
    Visual Studio
    Vendor
    Microsoft
    Product
    Visual Studio 2022
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://www.exploit-db.com/exploits/52492https://github.com/7huukdlnkjkjba/CVE-2025-55315-https://github.com/jlinebau/CVE-2025-55315-Scanner-Monitorhttps://github.com/MartinFabianIonut/CVE-2025-55315https://github.com/NetVanguard-cmd/CVE-2025-55315https://github.com/nickcopi/CVE-2025-55315-detection-playgroundhttps://github.com/RootAid/CVE-2025-55315https://github.com/sirredbeard/CVE-2025-55315-reprohttps://github.com/snowcrashlord/CVE-2025-55315https://github.com/ZemarKhos/CVE-2025-55315-PoC-Exploit

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-273 HTTP Response Smuggling
    CAPEC-33 HTTP Request Smuggling

    Related CVEs

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    CVE-2026-45591 (CVSS 7.5) — Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a netwo…
    CVE-2026-40372 (CVSS 9.1) — Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate pr…
    CVE-2026-26130 (CVSS 7.5) — Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny s…
    CVE-2025-26682 (CVSS 7.5) — Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny s…
    CVE-2025-24070 (CVSS 7) — Weak authentication in ASP.NET Core & Visual Studio allows an unauthorized attacker to elevate privileges …
    CVE-2024-21404 (CVSS 7.5) — .NET Denial of Service Vulnerability…
    CVE-2024-21386 (CVSS 7.5) — .NET Denial of Service Vulnerability…
    CVE-2023-36038 (CVSS 8.2) — ASP.NET Core Denial of Service Vulnerability…
    CVE-2023-36558 (CVSS 6.2) — ASP.NET Core Security Feature Bypass Vulnerability…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High