Home/CVE/.NET Elevation of Privilege Vulnerability
CVE

CVE-2025-21173

.NET Elevation of Privilege Vulnerability

.NET Elevation of Privilege Vulnerability.

HIGH · CVSS 7.3 EPSS 0.01997
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules5 YARA rules0
⬡

Weakness Classification

CWE-379Creation of Temporary File in Directory with Insecure Permissions
▤

Affected Products & Versions

5
microsoft visual studio 2022>= 17.6.0 and < 17.6.22
microsoft visual studio 2022>= 17.8.0 and < 17.8.17
microsoft visual studio 2022>= 17.10.0 and < 17.10.10
microsoft visual studio 2022>= 17.12.0 and < 17.12.4
microsoft .netall versions
◈

Sigma Hunt Rules

5
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighUAC Bypass Using .NET Code Profiler on MMC
producthighPotential AMSI Bypass Via .NET Reflection
producthighETW Logging Tamper In .NET Processes Via CommandLine
producthighETW Logging Disabled In .NET Processes - Registry
producthighETW Logging Disabled In .NET Processes - Sysmon Registry
▣

Scoring & Timeline

7.3
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Jan 2025 · 06:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

7
usnUSN-7210-1
msrcCVE-2025-21173Elevation of Privilege
rhsaRHSA-2025:0382Important
rhsaRHSA-2025:0381Important
rhsaRHBA-2025:0304Important
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.herodevs.com/vulnerability-directory/cve-2025-21173
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