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Vulnerability details: VCID-rzcb-91wr-6be1
Vulnerability ID VCID-rzcb-91wr-6be1
Aliases CVE-2025-21176
GHSA-gjf6-3w4p-7xfh
Summary .NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-126 Buffer Over-read
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 8.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21176.json
epss 0.0194 https://api.first.org/data/v1/epss?cve=CVE-2025-21176
epss 0.0194 https://api.first.org/data/v1/epss?cve=CVE-2025-21176
epss 0.0194 https://api.first.org/data/v1/epss?cve=CVE-2025-21176
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-gjf6-3w4p-7xfh
cvssv3.1 8.8 https://github.com/dotnet/runtime
generic_textual HIGH https://github.com/dotnet/runtime
cvssv3.1 8.8 https://github.com/dotnet/runtime/security/advisories/GHSA-gjf6-3w4p-7xfh
cvssv3.1_qr HIGH https://github.com/dotnet/runtime/security/advisories/GHSA-gjf6-3w4p-7xfh
generic_textual HIGH https://github.com/dotnet/runtime/security/advisories/GHSA-gjf6-3w4p-7xfh
cvssv3.1 8.8 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21176
cvssv3.1 8.8 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21176
generic_textual HIGH https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21176
ssvc Track https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21176
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2025-21176
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2025-21176
cvssv3.1 8.8 https://www.herodevs.com/vulnerability-directory/cve-2025-21176
generic_textual HIGH https://www.herodevs.com/vulnerability-directory/cve-2025-21176
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21176.json
https://api.first.org/data/v1/epss?cve=CVE-2025-21176
https://github.com/dotnet/runtime
https://github.com/dotnet/runtime/security/advisories/GHSA-gjf6-3w4p-7xfh
https://nvd.nist.gov/vuln/detail/CVE-2025-21176
2337926 https://bugzilla.redhat.com/show_bug.cgi?id=2337926
CVE-2025-21176 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21176
GHSA-gjf6-3w4p-7xfh https://github.com/advisories/GHSA-gjf6-3w4p-7xfh
RHSA-2025:0381 https://access.redhat.com/errata/RHSA-2025:0381
RHSA-2025:0382 https://access.redhat.com/errata/RHSA-2025:0382
RHSA-2025:0532 https://access.redhat.com/errata/RHSA-2025:0532
USN-7210-1 https://usn.ubuntu.com/7210-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21176.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/dotnet/runtime
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/dotnet/runtime/security/advisories/GHSA-gjf6-3w4p-7xfh
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Found at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21176
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21176
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-01-28T04:55:35Z/ Found at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21176
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2025-21176
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://www.herodevs.com/vulnerability-directory/cve-2025-21176
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.83812
EPSS Score 0.0194
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T17:08:11.990676+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2025/21xxx/CVE-2025-21176.json 38.6.0