CVE-2025-21176 | .NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability

.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability

Published: 2025-01-14 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-21176 is rated Moderate Risk (63.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.26%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2025-21176

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 2026-06-15 1.94% 2.26% +0.32%
2 2026-06-05 1.41% 1.94% +0.53%
3 2026-02-22 — 1.41% —

Full EPSS history (30 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-21176

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]

Weakness enumeration for CVE-2025-21176

GitHub Security Advisory for CVE-2025-21176

GHSA-gjf6-3w4p-7xfh · Severity: high · Ecosystem: nuget — Microsoft Security Advisory CVE-2025-21176 | .NET and Visual Studio Remote Code Execution Vulnerability

OS Trackers for CVE-2025-21176

vendor priority summary link
alpine high CVE-2025-21176: 2 source package rows (dotnet8-runtime, dotnet9-runtime); 6 state rows across 3 repos (3.21-community, 3.22-community, edge-community); fixed 6, open 0. https://security.alpinelinux.org/vuln/CVE-2025-21176
redhat high — https://access.redhat.com/security/cve/CVE-2025-21176
ubuntu medium CVE-2025-21176 medium priority: Ubuntu including 4 source packages (dotnet6, dotnet7, dotnet8, dotnet9), 32 status rows across 8 suites (bionic, focal, jammy, noble, oracular, trusty, upstream, xenial): DNE 22, needs-triage 4, released 4, ignored 2. https://ubuntu.com/security/CVE-2025-21176

Affected software / configurations for CVE-2025-21176

Vendor Product Version Raw CPE
microsoft .net 8.0.0 cpe:2.3:a:microsoft:.net:8.0.0:-:*:*:*:*:*:*
microsoft visual_studio_2017 >= 15.0, < 15.9.69 cpe:2.3:a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:*
microsoft .net_framework 4.6 cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:*
microsoft .net_framework 4.6.2 cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*
microsoft .net_framework 3.5 cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
microsoft .net_framework 4.8.1 cpe:2.3:a:microsoft:.net_framework:4.8.1:*:*:*:*:*:*:*
microsoft .net_framework 4.7 cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*
microsoft .net_framework 4.7.1 cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*
microsoft .net_framework 4.7.2 cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*
microsoft .net_framework 4.8 cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:*
microsoft .net 9.0.0 cpe:2.3:a:microsoft:.net:9.0.0:*:*:*:*:*:*:*

References for CVE-2025-21176

cvelogic Threat Intelligence