FKIE_CVE-2026-26131

Vulnerability from fkie_nvd - Published: 2026-03-10 18:18 - Updated: 2026-04-01 20:23
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Incorrect default permissions in .NET allows an authorized attacker to elevate privileges locally.
References
secure@microsoft.comhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26131Vendor Advisory
Impacted products
Vendor Product Version
microsoft .net *
linux linux_kernel -
To clipboard 

{
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    {
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              "matchCriteriaId": "6F0778BD-8D31-493B-93D5-FD554BB1AA33",
              "versionEndExcluding": "10.0.4",
              "versionStartIncluding": "10.0.0",
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            }
          ],
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Incorrect default permissions in .NET allows an authorized attacker to elevate privileges locally."
    },
    {
      "lang": "es",
      "value": "Permisos predeterminados incorrectos en .NET permiten a un atacante autorizado elevar privilegios localmente."
    }
  ],
  "id": "CVE-2026-26131",
  "lastModified": "2026-04-01T20:23:21.930",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "impactScore": 5.9,
        "source": "secure@microsoft.com",
        "type": "Primary"
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  "published": "2026-03-10T18:18:42.393",
  "references": [
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      "tags": [
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  "sourceIdentifier": "secure@microsoft.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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        {
          "lang": "en",
          "value": "CWE-276"
        }
      ],
      "source": "secure@microsoft.com",
      "type": "Primary"
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}


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Sightings

Author Source Type Date

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.