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Ubuntu Security NoticesUSN-8740-1

USN-8740-1: .NET vulnerabilities

Severity not listed 2 CVEs Published Sep 10, 2026 at 6:57 AM UTC

Summary

Weeraphat Srisutham discovered that the .NET watch BrowserRefreshServer did not properly validate cross-origin WebSocket connections. An attacker could possibly use this issue to expose sensitive information. (CVE-2026-58649) Rajesh Chada discovered that the .NET watch AspireServerService improperly exposed information through the use of certain arguments. An attacker could possibly use this issue to elevate privileges and execute arbitrary code.

(CVE-2026-69806)

Products covered

A separate affected-products list was not included in the collected bulletin.

Remediation

Separate remediation guidance was not included in the collected bulletin.

CVEs in this advisory 2

Updates

  1. Published by Ubuntu

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.