CVE-2023-38171
Remote Denial of Service Vulnerability in Microsoft.Native.Quic.MsQuic.Schannel
7.5
HIGH
CVSS 3.1
EPSS 8.3%
Description
### Impact The MsQuic server application or process will crash, resulting in a denial of service. ### Patches The following patch was made: - Don't Allow Version Negotiation Packets for Server Connections - https://github.com/microsoft/msquic/commit/3226cff07d22662f16fc98d605656860e64cd343 ### Workarounds Beyond upgrading to the patched versions, there is no other workaround. You must upgrade or disable MsQuic functionality.
How to fix CVE-2023-38171
To remediate CVE-2023-38171, upgrade the affected package to a fixed version below.
- —upgrade to 7.0.12 or later
- —upgrade to 7.0.12 or later
- —upgrade to 2.2.3 or later
- —upgrade to 2.2.3 or later
Is CVE-2023-38171 being exploited?
Moderate — EPSS is 8.3%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (4)
- >= 7.0.0, < 7.0.12
- >= 7.0.0, < 7.0.12
- from 0, < 2.2.3
- from 0, < 2.2.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |