7.5

CVE-2023-38180: Microsoft .NET Core and Visual Studio Denial-of-Service Vulnerability

CVSS: 7.5v3.1HighKEVAnalyzed
AliasesUBUNTU-CVE-2023-38180GHSA-vmch-3w2x-vhgqBIT-aspnet-core-2023-38180
Published 08-08-2023Last modified 10-08-2026
Open JSON

Vulnerability summary

CVE-2023-38180 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in Microsoft .NET Core and Visual Studio. It is known to be exploited: CISA lists it, first on 09-08-2023. EPSS estimates a 14.02% chance of exploitation in the next 30 days, higher than 96.5% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
14.02%
0%100%
Medium · 0.00 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 8 · Related 1
RHSA-2023:4639RHSA-2023:4640RHSA-2023:4641RHSA-2023:4642RHSA-2023:4643RHSA-2023:4644

Timeline

  1. 08-08-2023
    PublishedVulnerability first disclosed.
  2. 09-08-2023
    Added to CISA KEVMicrosoft .NET Core and Visual Studio Denial-of-Service Vulnerability
  3. 30-08-2023
    CISA remediation dueApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
  4. 10-08-2026
    Last modifiedVulnerability information updated.

Description

.NET and Visual Studio Denial of Service Vulnerability

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

14.02%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

0.00 pp

From 14.02% on 19-09-2026

19-09-202619-10-2026
EPSS score
14.02%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
09-08-2023
Federal due date
30-08-2023

CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-38180 nvd.nist.gov/vuln/detail/CVE-2023-38180

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft9 products
NuGet5 products
  • Microsoft.AspNetCore.App.Runtime.win-arm64≥ 7.0.0, < 7.0.10 | ≥ 6.0.0, < 6.0.21
  • Microsoft.AspNetCore.App.Runtime.win-x64≥ 7.0.0, < 7.0.10 | ≥ 6.0.0, < 6.0.21
  • Microsoft.AspNetCore.App.Runtime.win-x86≥ 7.0.0, < 7.0.10 | ≥ 6.0.0, < 6.0.21
  • Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv≥ 6.0.0, < 6.0.21 | < 2.1.40
  • Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets< 2.1.40
Ubuntu2 products
  • dotnet6< 6.0.121-0ubuntu1~22.04.1
  • dotnet7< 7.0.110-0ubuntu1~22.04.1
Fedoraproject1 product

4 vendors · 17 products

References

16 links
Show all 16 references