P4Verified

CVE-2026-70159: Microsoft Visual Studio 2022 version 17.14 17.14.0 to before 17.14.42; +3 more affected products

CVE-2026-70159 affects Microsoft.AspNetCore.SignalR.Common. CVSS 3.1 base score 7.5 (GitHub Advisory Database). Affected range: >= 10.0.0, <= 10.0.12. Fixed version: 10.0.13. Affected range: >= 1.0.0, <= 1.2.13. Fixed version: 1.2.14. Affected range: >= 11.0.0-preview.5, <= 11.0.0-rc.1. Fixed version: 11.0.0-rc.2. Affected range: >= 8.0.0, <= 8.0.31. Fixed version: 8.0.32. Affected range: >= 9.0.0, <= 9.0.20. Fixed version: 9.0.21.

Affected technology

Microsoft Visual Studio 2022 version 17.14 · 17.14.0 to before 17.14.42
Microsoft

Microsoft Visual Studio 2026 version 18.10 · 18.10.0 to before 18.10.4
Microsoft

Microsoft.AspNetCore.SignalR.Common · 10.0.0 to before 10.0.13
Microsoft

Microsoft.AspNetCore.SignalR.Core · 1.0.0 to before 1.2.14
Microsoft

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

An unauthorized attacker can deny service over a network. Vendor/CNA’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and integrity impact as none; availability impact as high.

Published 13-Oct-2026 20:19 UTC

CWE: CWE-770
Product: Microsoft.AspNetCore.SignalR.Common
CCR priority: 30.0 /100 (P4)
CVSS 3.1: 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · GitHub Advisory Database
KEV: no

Provenance

GitHub Advisory Database · Source record · observed 2026-10-13 20:20:59.886514+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-13 20:16:59.278043+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-70159.html