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01 Record

CVE-2023-38178

.NET Core and Visual Studio Denial of Service Vulnerability

HighPUBLISHEDCNA: microsoft
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

02 Description

.NET Core and Visual Studio Denial of Service Vulnerability

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
2.59% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 84.9% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-08-10.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-08-08 17:08Z3 YR AGO
Last updated
2026-08-10 15:12Z2 MO AGO
Reserved
2023-07-12
Assigning CNA
microsoft
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Weaknesses
  • CWE-400Uncontrolled Resource ConsumptionClass
Data version
5.2
Document digest
216bdfb8ecb727d994a2aa6c777d29842571f59f0d3d6a7cd4e3c2586f11d2a5

05 Affected products

VendorProductVersionsPlatforms
Microsoft.NET 6.06.0.0 to < 6.0.21—
MicrosoftMicrosoft Visual Studio 2022 version 17.217.2.0 to < 17.2.18—
MicrosoftMicrosoft Visual Studio 2022 version 17.417.4.0 to < 17.4.10—

06 References

07 Fixed in

Ubuntu 22.04 LTS

  • dotnet6
    Fixed in 6.0.121-0ubuntu1~22.04.1
  • dotnet7
    Fixed in 7.0.110-0ubuntu1~22.04.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.