p PatchFirst

CVE-2025-55315

CVE-2025-55315 · ASP.NET Security Feature Bypass Vulnerability

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 9.9 · Critical · EPSS 66.5% · Public exploit · Fix available

Published
Updated

Stack: system

Affected products and versions

  • asp.net core 2.3

    Versions
    • ≥ 2.3, < 2.3.6: Affected (custom)

    Update to 2.3.6

  • asp.net core 8.0

    Versions
    • ≥ 8.0, < 8.0.21: Affected (custom)

    Update to 8.0.21

  • asp.net core 9.0

    Versions
    • ≥ 9.0, < 9.0.10: Affected (custom)

    Update to 9.0.10

  • microsoft visual studio 2022 version 17.10

    Versions
    • ≥ 17.10.0, < 17.10.20: Affected (custom)

    Update to 17.10.20

  • microsoft visual studio 2022 version 17.12

    Versions
    • ≥ 17.12.0, < 17.12.13: Affected (custom)

    Update to 17.12.13

  • microsoft visual studio 2022 version 17.14

    Versions
    • ≥ 17.14.0, < 17.14.17: Affected (custom)

    Update to 17.14.17

  • dotnet6 Ubuntu:22.04:LTS

    Versions
    • 6.0.108-0ubuntu1~22.04.1
    • 6.0.109-0ubuntu1~22.04.1
    • 6.0.110-0ubuntu1~22.04.1
    • 6.0.111-0ubuntu1~22.04.1
    • 6.0.113-0ubuntu1~22.04.1
    • 6.0.116-0ubuntu1~22.04.1
    • 6.0.118-0ubuntu1~22.04.1
    • 6.0.119-0ubuntu1~22.04.1
    • 6.0.120-0ubuntu1~22.04.1
    • 6.0.121-0ubuntu1~22.04.1
    • 6.0.122-0ubuntu1~22.04.1
    • 6.0.123-0ubuntu1~22.04.1
    • 6.0.124-0ubuntu1~22.04.1
    • 6.0.125-0ubuntu1~22.04.1
    • 6.0.126-0ubuntu1~22.04.1
    • 6.0.127-0ubuntu1~22.04.1
    • 6.0.128-0ubuntu1~22.04.2
    • 6.0.132-0ubuntu1~22.04.1
    • 6.0.133-0ubuntu1~22.04.1
    • 6.0.135-0ubuntu1~22.04.1
    • 6.0.136-0ubuntu1~22.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dotnet7 Ubuntu:22.04:LTS

    Versions
    • 7.0.105-0ubuntu1~22.04.1
    • 7.0.107-0ubuntu1~22.04.1
    • 7.0.108-0ubuntu1~22.04.1
    • 7.0.109-0ubuntu1~22.04.1
    • 7.0.110-0ubuntu1~22.04.1
    • 7.0.111-0ubuntu1~22.04.1
    • 7.0.112-0ubuntu1~22.04.1
    • 7.0.113-0ubuntu1~22.04.1
    • 7.0.114-0ubuntu1~22.04.1
    • 7.0.115-0ubuntu1~22.04.1
    • 7.0.116-0ubuntu1~22.04.1
    • 7.0.117-0ubuntu1~22.04.1
    • 7.0.117-0ubuntu1~22.04.2
    • 7.0.119-0ubuntu1~22.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dotnet8 Ubuntu:22.04:LTS

    Versions
    • 8.0.102-8.0.2-0ubuntu1~22.04.1
    • 8.0.103-8.0.3-0ubuntu1~22.04.1
    • 8.0.103-8.0.3-0ubuntu1~22.04.2
    • 8.0.105-8.0.5-0ubuntu1~22.04.1
    • 8.0.107-8.0.7-0ubuntu1~22.04.1
    • 8.0.108-8.0.8-0ubuntu1~22.04.1
    • 8.0.110-8.0.10-0ubuntu1~22.04.1
    • 8.0.111-8.0.11-0ubuntu1~22.04.1
    • 8.0.112-8.0.12-0ubuntu1~22.04.1
    • 8.0.114-8.0.14-0ubuntu1~22.04.1
    • 8.0.115-8.0.15-0ubuntu1~22.04.1
    • 8.0.116-8.0.16-0ubuntu1~22.04.1
    • 8.0.117-8.0.17-0ubuntu1~22.04.1
    • 8.0.118-8.0.18-0ubuntu1~22.04.1
    • 8.0.119-8.0.19-0ubuntu1~22.04.1
    • 8.0.120-8.0.20-0ubuntu1~22.04.1
    Affected ranges
    • ECOSYSTEM: < 8.0.121-8.0.21-0ubuntu1~22.04.1

    Update to 8.0.121-8.0.21-0ubuntu1~22.04.1

  • dotnet10 Ubuntu:24.04:LTS

    Affected ranges
    • ECOSYSTEM: < 10.0.100-10.0.0-0ubuntu1~24.04.1

    Update to 10.0.100-10.0.0-0ubuntu1~24.04.1

  • dotnet8 Ubuntu:24.04:LTS

    Versions
    • 8.0.100-8.0.0~rc1-0ubuntu1
    • 8.0.100-8.0.0~rc2-0ubuntu1
    • 8.0.100-8.0.0~rc2-0ubuntu2
    • 8.0.100-8.0.0-0ubuntu1
    • 8.0.100-8.0.0-0ubuntu2
    • 8.0.101-8.0.1-0ubuntu1
    • 8.0.101-8.0.1-0ubuntu2
    • 8.0.102-8.0.2-0ubuntu1
    • 8.0.103-8.0.3-0ubuntu2
    • 8.0.103-8.0.3-0ubuntu3
    • 8.0.104-8.0.4-0ubuntu1
    • 8.0.105-8.0.5-0ubuntu1~24.04.1
    • 8.0.107-8.0.7-0ubuntu1~24.04.1
    • 8.0.108-8.0.8-0ubuntu1~24.04.1
    • 8.0.108-8.0.8-0ubuntu1~24.04.2
    • 8.0.110-8.0.10-0ubuntu1~24.04.1
    • 8.0.111-8.0.11-0ubuntu1~24.04.1
    • 8.0.112-8.0.12-0ubuntu1~24.04.1
    • 8.0.114-8.0.14-0ubuntu1~24.04.1
    • 8.0.115-8.0.15-0ubuntu1~24.04.1
    • 8.0.116-8.0.16-0ubuntu1~24.04.1
    • 8.0.117-8.0.17-0ubuntu1~24.04.1
    • 8.0.118-8.0.18-0ubuntu1~24.04.1
    • 8.0.119-8.0.19-0ubuntu1~24.04.1
    • 8.0.120-8.0.20-0ubuntu1~24.04.1
    Affected ranges
    • ECOSYSTEM: < 8.0.121-8.0.21-0ubuntu1~24.04.1

    Update to 8.0.121-8.0.21-0ubuntu1~24.04.1

  • dotnet10 Ubuntu:25.10

    Versions
    • 10.0.100-10.0.0~rc1-0ubuntu1
    Affected ranges
    • ECOSYSTEM: < 10.0.100-10.0.0~rc2-0ubuntu1~25.10.2

    Update to 10.0.100-10.0.0~rc2-0ubuntu1~25.10.2

  • dotnet8 Ubuntu:25.10

    Versions
    • 8.0.115-8.0.15-0ubuntu1
    • 8.0.116-8.0.16-0ubuntu1
    • 8.0.117-8.0.17-0ubuntu1
    • 8.0.118-8.0.18-0ubuntu1
    • 8.0.119-8.0.19-0ubuntu1
    • 8.0.120-8.0.20-0ubuntu1
    Affected ranges
    • ECOSYSTEM: < 8.0.121-8.0.21-0ubuntu1~25.10.1

    Update to 8.0.121-8.0.21-0ubuntu1~25.10.1

  • dotnet9 Ubuntu:25.10

    Versions
    • 9.0.105-9.0.4-0ubuntu1
    • 9.0.106-9.0.5-0ubuntu1
    • 9.0.107-9.0.6-0ubuntu1
    • 9.0.108-9.0.7-0ubuntu1
    • 9.0.109-9.0.8-0ubuntu1
    • 9.0.110-9.0.9-0ubuntu1
    Affected ranges
    • ECOSYSTEM: < 9.0.111-9.0.10-0ubuntu1~25.10.1

    Update to 9.0.111-9.0.10-0ubuntu1~25.10.1

  • dotnet10 Ubuntu:26.04:LTS

    Versions
    • 10.0.100-10.0.0~rc1-0ubuntu1
    Affected ranges
    • ECOSYSTEM: < 10.0.100-10.0.0~rc2-0ubuntu1

    Update to 10.0.100-10.0.0~rc2-0ubuntu1

Original sources

Check your server →