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High 7.5Known exploited (CISA KEV)Published Aug 8, 2023
CVE-2023-38180.NET and Visual Studio Denial of Service Vulnerability
Updated under an hour ago ()
Does this affect you?
It affects Microsoft .NET 6.0 and 9 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Aug 9, 2023; federal agencies had to remediate by Aug 30, 2023. Treat that date as your deadline.
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.NET and Visual Studio Denial of Service Vulnerability
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
- Weakness (CWE)
- CWE-400
- Known exploited
- Added to CISA KEV Aug 9, 2023; federal remediation due Aug 30, 2023Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- EPSS (exploitation in the next 30 days)
- 14.02% (percentile 97)
- Assigned by
- microsoft
- NVD analysis
- Analyzed
- Record last updated
- Aug 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Microsoft .NET 6.0 microsoft:net_6.0 (from the name) | from 6.0.0 before 6.0.21 | CNA record |
Microsoft .NET 7.0 microsoft:net_7.0 (from the name) | from 7.0.0 before 7.0.10 | CNA record |
Microsoft ASP.NET Core 2.1 microsoft:asp.net_core_2.1 (from the name) | from 2.0 before 2.1.40 | CNA record |
Microsoft Microsoft Visual Studio 2022 version 17.2 microsoft:visual_studio_2022_version_17.2 (from the name) | from 17.2.0 before 17.2.18 | CNA record |
Microsoft Microsoft Visual Studio 2022 version 17.4 microsoft:visual_studio_2022_version_17.4 (from the name) | from 17.4.0 before 17.4.10 | CNA record |
Microsoft Microsoft Visual Studio 2022 version 17.6 microsoft:visual_studio_2022_version_17.6 (from the name) | from 17.6.0 before 17.6.6 | CNA record |
microsoft .net microsoft:.net | from 6.0.0 before 6.0.21; from 7.0.0 before 7.0.10 | NVD |
microsoft asp.net_core microsoft:asp.net_core | from 2.1 before 2.1.40 | NVD |
microsoft visual_studio_2022 microsoft:visual_studio_2022 | from 17.2.0 before 17.2.18; from 17.4.0 before 17.4.10; from 17.6.0 before 17.6.6 | NVD |
fedoraproject fedora fedoraproject:fedora | 37; 38 | NVD |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38180vendor-advisory, patch
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CL2L4WE5QRT7WEXANYXSKSU43APC5N2V/mailing-list
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NWVZFKTLNMNKPZ755EMRYIA6GHFOWGKY/mailing-list
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38180us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.