USN-8740-1 (UBUNTU-CVE-2026-58649)

Vulnerability from osv_ubuntu – Published: 2026-09-10 06:57 – Updated: 2026-09-10 06:57 – Source website
VLAI
Summary
dotnet8, dotnet10 vulnerabilities
Details

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)

References
To clipboard 

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  "aliases": [],
  "details": "Weeraphat Srisutham discovered that the .NET watch BrowserRefreshServer did\nnot properly validate cross-origin WebSocket connections. An attacker could\npossibly use this issue to expose sensitive information. (CVE-2026-58649)\n\nRajesh Chada discovered that the .NET watch AspireServerService improperly\nexposed information through the use of certain arguments. An attacker could\npossibly use this issue to elevate privileges and execute arbitrary code.\n(CVE-2026-69806)",
  "id": "USN-8740-1",
  "modified": "2026-09-10T06:57:42Z",
  "published": "2026-09-10T06:57:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8740-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-58649"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-69806"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "dotnet8, dotnet10 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-58649",
    "UBUNTU-CVE-2026-69806"
  ]
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.