GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2026-58529 (GCVE-0-2026-58529)

Vulnerability from cvelistv5 – Published: 2026-07-14 17:10 – Updated: 2026-09-09 19:41
VLAI
Title
Windows Active Directory Federation Services (ADFS) Information Disclosure Vulnerability
Summary
Out-of-bounds read in Active Directory Federation Services (AD FS) allows an authorized attacker to disclose information over a network.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 17:45 UTC
CWE
References
Impacted products
Vendor Product Version CPE status
Microsoft Windows 11 version 26H1 Affected: 10.0.28000.0 , < 10.0.28000.2525 (custom)
    cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*
Create a notification for this product.
Date Public
2026-07-14 14:00
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-58529",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-14T17:45:21.909471Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-14T17:45:29.520Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "platforms": [
            "ARM64-based Systems",
            "x64-based Systems"
          ],
          "product": "Windows 11 version 26H1",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.28000.2525",
              "status": "affected",
              "version": "10.0.28000.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*",
                  "versionEndExcluding": "10.0.28000.2525",
                  "versionStartIncluding": "10.0.28000.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "datePublic": "2026-07-14T14:00:00.000Z",
      "descriptions": [
        {
          "lang": "en-US",
          "value": "Out-of-bounds read in Active Directory Federation Services (AD FS) allows an authorized attacker to disclose information over a network."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125: Out-of-bounds Read",
              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-09T19:41:10.108Z",
        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "name": "Windows Active Directory Federation Services (ADFS) Information Disclosure Vulnerability",
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58529"
        }
      ],
      "title": "Windows Active Directory Federation Services (ADFS) Information Disclosure Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2026-58529",
    "datePublished": "2026-07-14T17:10:18.062Z",
    "dateReserved": "2026-07-01T04:33:41.869Z",
    "dateUpdated": "2026-09-09T19:41:10.108Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-58529",
      "date": "2026-09-16",
      "epss": "0.01036",
      "percentile": "0.62177"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-58529\",\"sourceIdentifier\":\"secure@microsoft.com\",\"published\":\"2026-07-14T18:18:39.550\",\"lastModified\":\"2026-07-16T13:45:02.420\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Out-of-bounds read in Active Directory Federation Services (AD FS) allows an authorized attacker to disclose information over a network.\"}],\"affected\":[{\"source\":\"secure@microsoft.com\",\"affectedData\":[{\"vendor\":\"Microsoft\",\"product\":\"Windows 11 version 26H1\",\"platforms\":[\"ARM64-based Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.28000.0\",\"lessThan\":\"10.0.28000.2525\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.8,\"impactScore\":4.2}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-07-14T17:45:21.909471Z\",\"id\":\"CVE-2026-58529\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*\",\"versionEndExcluding\":\"10.0.28000.2525\",\"matchCriteriaId\":\"8E90830B-0BD1-4D01-9C7D-0F0E1828A0F5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*\",\"versionEndExcluding\":\"10.0.28000.2525\",\"matchCriteriaId\":\"D335CB65-70DC-4DB1-9519-AF9243EC2FDF\"}]}]}],\"references\":[{\"url\":\"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58529\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Vendor Advisory\",\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-58529\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-14T17:45:21.909471Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-14T17:45:26.344Z\"}}], \"cna\": {\"title\": \"Windows Active Directory Federation Services (ADFS) Information Disclosure Vulnerability\", \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.1, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L/E:U/RL:O/RC:C\"}, \"scenarios\": [{\"lang\": \"en-US\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Microsoft\", \"product\": \"Windows 11 version 26H1\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.28000.0\", \"lessThan\": \"10.0.28000.2525\", \"versionType\": \"custom\"}], \"platforms\": [\"ARM64-based Systems\", \"x64-based Systems\"]}], \"datePublic\": \"2026-07-14T14:00:00.000Z\", \"references\": [{\"url\": \"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58529\", \"name\": \"Windows Active Directory Federation Services (ADFS) Information Disclosure Vulnerability\", \"tags\": [\"vendor-advisory\", \"patch\"]}], \"descriptions\": [{\"lang\": \"en-US\", \"value\": \"Out-of-bounds read in Active Directory Federation Services (AD FS) allows an authorized attacker to disclose information over a network.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en-US\", \"type\": \"CWE\", \"cweId\": \"CWE-125\", \"description\": \"CWE-125: Out-of-bounds Read\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*\", \"vulnerable\": true, \"versionEndExcluding\": \"10.0.28000.2525\", \"versionStartIncluding\": \"10.0.28000.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"shortName\": \"microsoft\", \"dateUpdated\": \"2026-09-09T19:41:10.108Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-58529\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-09T19:41:10.108Z\", \"dateReserved\": \"2026-07-01T04:33:41.869Z\", \"assignerOrgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"datePublished\": \"2026-07-14T17:10:18.062Z\", \"assignerShortName\": \"microsoft\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

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.


Loading…