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CVE-2026-62909

.NET Elevation of Privilege Vulnerability

HIGH
7.8
CVSS Score
Published: August 11, 2026 at 05:04 PM UTC
Updated: October 21, 2026 at 08:52 PM UTC
3 products affected across 1 vendorVisual Studio 2022.netVisual Studio 2026· also runs on 3 platforms

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Uncaught exception in .NET allows an authorized attacker to elevate privileges locally.

Affected

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

.net· Microsoft
95%
10.0.0 ≤ v < 10.0.118.0.0 ≤ v < 8.0.309.0.0 ≤ v < 9.0.19*10.0.08.0.09.0.0
Affected range stops below 10.0.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.0.30, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.0.19, so it looks safe — our inference, not a vendor statement
apple-macos (environment) · linux-linux-kernel (environment) · microsoft-windows (environment)
Visual Studio 2022· Microsoft
95%
17.14.0 ≤ v < 17.14.38*17.14.0
Affected range stops below 17.14.38, so it looks safe — our inference, not a vendor statement
Visual Studio 2026· Microsoft
95%
18.8.0 ≤ v < 18.8.3*18.0
Affected range stops below 18.8.3, 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 (1)

Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62909

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-248CWE-252

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