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CVE-2023-38180

.NET and Visual Studio Denial of Service Vulnerability

HIGH
7.5
CVSS Score
Published: August 8, 2023 at 06:52 PM UTC
Updated: August 10, 2026 at 04:28 PM UTC
4 products affected across 2 vendorsFedoraVisual Studio 2022.net

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Severity
HIGH7.5
Exploitation
CISA KEV
Exploit prediction
EPSS 14%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score14.1%

EPSS (Exploit Prediction Scoring System) estimates a 14.1% chance this CVE is exploited in the wild within the next 30 days — higher than 97% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

Microsoft .NET Core and Visual Studio contain an unspecified vulnerability that allows for denial-of-service (DoS).

Required Action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Ransomware Use
Unknown
Added to KEV
Aug 9, 2023
Remediation Due
Aug 30, 2023
1158 days overdue
Notes
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-38180
https://nvd.nist.gov/vuln/detail/CVE-2023-38180

Description

.NET and Visual Studio Denial of Service Vulnerability

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Fedora· Fedora Projectrpm
95%
3738
ASP.NET Core· Microsoft
95%
2.0 ≤ v < 2.1.402.1 ≤ v < 2.1.402.0
Affected range stops below 2.1.40, so it looks safe — our inference, not a vendor statement
.net· Microsoft
95%
6.0.0 ≤ v < 6.0.217.0.0 ≤ v < 7.0.106.0.07.0.0
Affected range stops below 6.0.21, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.0.10, so it looks safe — our inference, not a vendor statement
Visual Studio 2022· Microsoft
95%
17.2.0 ≤ v < 17.2.1817.4.0 ≤ v < 17.4.1017.6.0 ≤ v < 17.6.617.2.017.4.017.6.0
Affected range stops below 17.2.18, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.4.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.6.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

Vendor AdvisoryPatch
Source: [email protected]
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38180
Mailing List
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.fedoraproject.org/archives/list/[email protected]/message/CL2L4WE5QRT7WEXANYXSKSU43APC5N2V/
Mailing List
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.fedoraproject.org/archives/list/[email protected]/message/NWVZFKTLNMNKPZ755EMRYIA6GHFOWGKY/
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38180

SSVC — Action Prioritization

SSVCActiveAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHmicrosoft
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfoCWE-400

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