ubuntu-cve-2026-26127
Vulnerability from osv_ubuntu
Published
2026-03-10 00:00
Modified
2026-03-10 00:00
Summary
Details

Out-of-bounds read in .NET allows an unauthorized attacker to deny service over a network.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
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      },
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  ],
  "aliases": [],
  "details": "Out-of-bounds read in .NET allows an unauthorized attacker to deny service over a network.",
  "id": "UBUNTU-CVE-2026-26127",
  "modified": "2026-03-10T00:00:00Z",
  "published": "2026-03-10T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-26127"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-26127"
    },
    {
      "type": "REPORT",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26127"
    },
    {
      "type": "REPORT",
      "url": "https://devblogs.microsoft.com/dotnet/dotnet-and-dotnet-framework-march-2026-servicing-updates"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/dotnet/announcements/issues/384"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8085-1"
    }
  ],
  "related": [
    "USN-8085-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-26127"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Detection rules are retrieved from Rulezet.