CVE-2023-38180 | .NET and Visual Studio Denial of Service Vulnerability

Exp

.NET and Visual Studio Denial of Service Vulnerability

Published: 2023-08-08 Last update: 2025-10-28 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-38180 is rated Active Exploitation (76.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.88%). CISA KEV confirms active exploitation (added 2023-08-09) affecting Microsoft / .NET Core and Visual Studio. a weakness (CWE-400) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2023-38180

Name: Microsoft .NET Core and Visual Studio Denial-of-Service Vulnerability · CISA KEV detail

Exploit added: 2023-08-09

Action due: 2023-08-30

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Exploit prediction scoring system (EPSS) score for CVE-2023-38180

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 47.97% 0.88% -47.09%
2 2025-11-18 0.88% 47.97% +47.09%
3 2025-10-29 — 0.88% —

Full EPSS history (26 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-38180

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2023-38180

GitHub Security Advisory for CVE-2023-38180

GHSA-vmch-3w2x-vhgq · Severity: high · Ecosystem: nuget — .NET Denial of Service Vulnerability

OS Trackers for CVE-2023-38180

vendor priority summary link
alpine — CVE-2023-38180: 4 source package rows (dotnet6-build, dotnet6-runtime, dotnet7-build, dotnet7-runtime); 14 state rows across 4 repos (3.18-community, 3.19-community, 3.20-community, edge-community); fixed 14, open 0. https://security.alpinelinux.org/vuln/CVE-2023-38180
redhat high — https://access.redhat.com/security/cve/CVE-2023-38180
ubuntu medium CVE-2023-38180 medium priority: Ubuntu including 2 source packages (dotnet6, dotnet7), 14 status rows across 7 suites (bionic, focal, jammy, lunar, trusty, upstream, xenial): DNE 8, released 6. https://ubuntu.com/security/CVE-2023-38180

Affected software / configurations for CVE-2023-38180

Vendor Product Version Raw CPE
microsoft .net >= 6.0.0, < 6.0.21 cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
microsoft .net >= 7.0.0, < 7.0.10 cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
microsoft asp.net_core >= 2.1, < 2.1.40 cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*
microsoft visual_studio_2022 >= 17.2.0, < 17.2.18 cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
microsoft visual_studio_2022 >= 17.4.0, < 17.4.10 cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
microsoft visual_studio_2022 >= 17.6.0, < 17.6.6 cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
fedoraproject fedora 37 cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
fedoraproject fedora 38 cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

References for CVE-2023-38180

cvelogic Threat Intelligence