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CVE-2025-21173

.NET Elevation of Privilege Vulnerability

HIGH
7.3
CVSS Score
Published: January 14, 2025 at 06:04 PM UTC
Updated: June 17, 2026 at 08:42 AM UTC
2 products affected across 1 vendorVisual Studio 2022.net· also runs on 1 platform

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Severity
HIGH7.3
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

.NET Elevation of Privilege Vulnerability

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

.net· Microsoft
95%
8.0.0 ≤ v < 8.0.129.0.0 ≤ v < 9.0.18.0.09.0.0
Affected range stops below 8.0.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.0.1, so it looks safe — our inference, not a vendor statement
linux-linux-kernel (environment)
Visual Studio 2022· Microsoft
95%
17.10.0 ≤ v < 17.10.1017.12.0 ≤ v < 17.12.417.6.0 ≤ v < 17.6.2217.8.0 ≤ v < 17.8.1717.10.017.12.017.6.017.8.0
Affected range stops below 17.10.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.12.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.6.22, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.8.17, so it looks safe — our inference, not a vendor statement

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor AdvisoryPatch
Source: [email protected]
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21173
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.herodevs.com/vulnerability-directory/cve-2025-21173

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHmicrosoft
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-379NVD-CWE-noinfo

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