How severe is CVE-2023-38180?

CVE-2023-38180 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-38180 being actively exploited?

Yes. CVE-2023-38180 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-08-09, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2023-38180?

CVE-2023-38180 primarily affects Microsoft .net. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-38180?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2023-38180 have an EU (EUVD) identifier?

Yes. CVE-2023-38180 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-2363. It is also flagged as exploited in the EUVD (since 2023-08-09).

When was CVE-2023-38180 published?

CVE-2023-38180 was published on 2023-08-08 and last updated on 2026-06-17.

CVE-2023-38180

CVE-2023-38180 is a high-severity vulnerability in Microsoft .net with a CVSS 3.x base score of 7.5. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2023-08-09). The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 16% (96th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2023-08-09)
EU (EUVD) id: EUVD-2023-2363
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2023-08-09)
Weakness: CWE-400
Affected product: Microsoft .net
Published: 2023-08-08
Last modified: 2026-06-17

Description

.NET and Visual Studio Denial of Service Vulnerability

Frequently asked questions

What is CVE-2023-38180?: .NET and Visual Studio Denial of Service Vulnerability
How severe is CVE-2023-38180?: CVE-2023-38180 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-38180 being actively exploited?: Yes. CVE-2023-38180 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-08-09, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2023-38180?: CVE-2023-38180 primarily affects Microsoft .net. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-38180?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2023-38180 have an EU (EUVD) identifier?: Yes. CVE-2023-38180 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-2363. It is also flagged as exploited in the EUVD (since 2023-08-09).
When was CVE-2023-38180 published?: CVE-2023-38180 was published on 2023-08-08 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

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