SARA / Free Tools / CVE / CVE-2022-34716

CVE-2022-34716

.NET Spoofing Vulnerability

CVSS

5.9 MEDIUM

EPSS

1.11% (top 22.10%)

CWE

—

Published

2022-08-09T19:55:43.000Z

Last modified

2025-05-29T20:07:34.145Z

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

01What is this vulnerability?

.NET Spoofing Vulnerability

Vendor	Product	Versions
Microsoft	Microsoft Visual Studio 2017 version 15.9 (includes 15.0	15.8) — 15.9.0
Microsoft	Microsoft Visual Studio 2022 version 17.2	17.2.0
Microsoft	Microsoft Visual Studio 2019 version 16.9 (includes 16.0	16.8) — 15.0.0
Microsoft	Microsoft Visual Studio 2019 version 16.11 (includes 16.0	16.10) — 16.11.0
Microsoft	Microsoft Visual Studio 2022 version 17.0	17.0.0
Microsoft	.NET 6.0	6.0.0
Microsoft	.NET Core 3.1	3.1
Microsoft	PowerShell 7.0	7.0.0
Microsoft	PowerShell 7.2	7.2.0

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

msrc.microsoft.com — https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-34716

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