MsQuic: Improper Certificate Validation in Microsoft.Native.Quic.MsQuic.OpenSSL
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| microsoft | msquic | affected |
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| Vendor | Product | Versions | ||||||||||||||||
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| Microsoft | Msquic |
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| Source | ID | Title |
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Github GHSA |
GHSA-w5f4-fx9m-m4q7 | MsQuic: Improper Certificate Validation in Microsoft.Native.Quic.MsQuic.OpenSSL |
No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: 1.0% (1.001% probability within 30 days)
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| Metrics |
ssvc
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| First Time appeared |
Microsoft
Microsoft msquic |
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| Vendors & Products |
Microsoft
Microsoft msquic |
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| Description | MsQuic is a cross-platform C implementation of the IETF QUIC protocol exposed to C, C++, C#, and Rust. Prior to 2.4.20, 2.5.11, and 2.6.1, MsQuic clients using the OpenSSL or QuicTLS TLS backend do not properly verify that a server certificate matches the intended target server hostname. An on-path attacker can therefore present a certificate that does not match the intended target hostname and spoof the server in a man-in-the-middle attack. The Schannel backend is not affected. This issue is fixed in versions 2.4.20, 2.5.11, and 2.6.1. | |
| Title | MsQuic: Improper Certificate Validation in Microsoft.Native.Quic.MsQuic.OpenSSL | |
| Weaknesses | CWE-295 | |
| References |
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| Metrics |
cvssV4_0
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