Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Microsoft .NET 6.0 — ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N U H N N 7.5 .0190 78.1 —
AFFECTED
Product Versions Fixed
.NET 6.0 6.0.0 – —
.NET 7.0 7.0.0 – —
ASP.NET Core 2.1 2.0 – —
Microsoft Visual Studio 2022 version 17.2 17.2.0 – —
Microsoft Visual Studio 2022 version 17.4 17.4.0 – —
Microsoft Visual Studio 2022 version 17.6 17.6.0 – —
TIMELINE
Jun 14 Reserved by microsoft
Aug 8 Published (CNA: microsoft)
Aug 10 RESCORED — CVE-2023-35391 (Microsoft .NET 6.0). CVSS 6.2 → 7.5 (NVD).
Description
ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| June 14, 2023 | Reserved | Reserved by microsoft |
| August 8, 2023 | Published | Published (CNA: microsoft) |
| August 10, 2026 | RESCORED | RESCORED — CVE-2023-35391 (Microsoft .NET 6.0). CVSS 6.2 → 7.5 (NVD). |
Affected
Affected products and packages — 6 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Microsoft | .NET 6.0 | — | 6.0.0 | — |
| Microsoft | .NET 7.0 | — | 7.0.0 | — |
| Microsoft | ASP.NET Core 2.1 | — | 2.0 | — |
| Microsoft | Microsoft Visual Studio 2022 version 17.2 | — | 17.2.0 | — |
| Microsoft | Microsoft Visual Studio 2022 version 17.4 | — | 17.4.0 | — |
| Microsoft | Microsoft Visual Studio 2022 version 17.6 | — | 17.6.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-35391 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.