CVE-2024-38167Network attack vector

Remote information disclosure through TlsStream

Published Aug 13, 2024 · Updated Jul 10, 2025

Information disclosure in .NET runtime TlsStream before 8.0.8 and affected Visual Studio releases allows remote attackers to read sensitive data. Microsoft identifies TlsStream as the locus but has not published the wrong operation it performs on untrusted TLS input. Exploitation requires user action and an affected .NET 8.0 application, including Visual Studio 17.6 before 17.6.18, 17.8 before 17.8.13, or 17.10 before 17.10.6; the consequence is confidentiality loss only.

CVSS severity6.5
Medium
EPSS probability1.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in .NET runtime TlsStream before 8.0.8 and affected Visual Studio releases allows remote attackers to read sensitive data. Microsoft identifies TlsStream as the locus but has not published the wrong operation it performs on untrusted TLS input. Exploitation requires user action and an affected .NET 8.0 application, including Visual Studio 17.6 before 17.6.18, 17.8 before 17.8.13, or 17.10 before 17.10.6; the consequence is confidentiality loss only.

The record

CVE
CVE-2024-38167
Published
Aug 13, 2024
Updated
Jul 10, 2025
Vendor
Microsoft
Product
Microsoft Visual Studio 2022 version 17.10
Classifications
CWE-319
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=17.10 <17.10.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft Visual Studio 2022 version 17.10version=17.10 <17.10.6
Microsoft · Microsoft Visual Studio 2022 version 17.8version=17.8.0 <17.8.13
Microsoft · Microsoft Visual Studio 2022 version 17.6version=17.6.0 <17.6.18
Microsoft · .NET 8.0version=8.0 <8.0.8

Published CVSS scores

6.5Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-319Cleartext Transmission of Sensitive Information

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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