Vulnerability-Lookup

FKIE_CVE-2026-21672

Vulnerability from fkie_nvd - Published: 2026-03-12 17:16 - Updated: 2026-04-17 16:16

Severity ?

Summary

A vulnerability allowing local privilege escalation on Windows-based Veeam Backup & Replication servers.

References

	URL	Tags
	support@hackerone.com	https://www.veeam.com/kb4830
	support@hackerone.com	https://www.veeam.com/kb4831

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability allowing local privilege escalation on Windows-based Veeam Backup \u0026 Replication servers."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad que permite la escalada de privilegios local en servidores Veeam Backup \u0026amp; Replication basados en Windows."
    }
  ],
  "id": "CVE-2026-21672",
  "lastModified": "2026-04-17T16:16:35.783",
  "metrics": {},
  "published": "2026-03-12T17:16:35.633",
  "references": [
    {
      "source": "support@hackerone.com",
      "url": "https://www.veeam.com/kb4830"
    },
    {
      "source": "support@hackerone.com",
      "url": "https://www.veeam.com/kb4831"
    }
  ],
  "sourceIdentifier": "support@hackerone.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-538"
        }
      ],
      "source": "support@hackerone.com",
      "type": "Secondary"
    }
  ]
}

CVE-2026-21672 (GCVE-0-2026-21672)

Vulnerability from cvelistv5 – Published: 2026-03-12 16:26 – Updated: 2026-04-17 15:32

Summary

A vulnerability allowing local privilege escalation on Windows-based Veeam Backup & Replication servers.

Severity ?

No CVSS data available.

CWE

CWE-538 - File and Directory Information Exposure

Assigner

hackerone

References

URL

Tags

	https://www.veeam.com/kb4831
	https://www.veeam.com/kb4830

Impacted products

	Vendor	Product	Version
	Veeam	Backup and Replication	Affected: 12 , < 12.3.2 (semver) Affected: 13 , < 13.0.1 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-21672",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-12T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "description": "CWE-noinfo Not enough information",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-13T03:55:47.412Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Backup and Replication",
          "vendor": "Veeam",
          "versions": [
            {
              "lessThan": "12.3.2",
              "status": "affected",
              "version": "12",
              "versionType": "semver"
            },
            {
              "lessThan": "13.0.1",
              "status": "affected",
              "version": "13",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability allowing local privilege escalation on Windows-based Veeam Backup \u0026 Replication servers."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-538",
              "description": "CWE-538 File and Directory Information Exposure",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-17T15:32:11.662Z",
        "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
        "shortName": "hackerone"
      },
      "references": [
        {
          "url": "https://www.veeam.com/kb4831"
        },
        {
          "url": "https://www.veeam.com/kb4830"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
    "assignerShortName": "hackerone",
    "cveId": "CVE-2026-21672",
    "datePublished": "2026-03-12T16:26:52.213Z",
    "dateReserved": "2026-01-02T15:00:02.872Z",
    "dateUpdated": "2026-04-17T15:32:11.662Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

FKIE_CVE-2026-21672

CVE-2026-21672 (GCVE-0-2026-21672)

Tags

Sightings

Nomenclature