Vulnerability-Lookup

GHSA-W6V6-CXGJ-7XH5

Vulnerability from github – Published: 2026-01-05 18:30 – Updated: 2026-01-05 18:30

Details

A malicious actor with access to the adjacent network could overflow the UniFi Protect Application (Version 6.1.79 and earlier) discovery protocol causing it to restart.

Affected Products: UniFi Protect Application (Version 6.1.79 and earlier).

Mitigation: Update your UniFi Protect Application to Version 6.2.72 or later.

Severity ?

6.5 (Medium)


                  
                    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-21634"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-05T17:15:47Z",
    "severity": "MODERATE"
  },
  "details": "A malicious actor with access to the adjacent network could overflow the UniFi Protect Application (Version 6.1.79 and earlier) discovery protocol causing it to restart.\n\n\nAffected Products:\nUniFi Protect Application (Version 6.1.79 and earlier). \n \nMitigation:\nUpdate your UniFi Protect Application to Version 6.2.72 or later.",
  "id": "GHSA-w6v6-cxgj-7xh5",
  "modified": "2026-01-05T18:30:23Z",
  "published": "2026-01-05T18:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21634"
    },
    {
      "type": "WEB",
      "url": "https://community.ui.com/releases/Security-Advisory-Bulletin-058-058/6922ff20-8cd7-4724-8d8c-676458a2d0f9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-21634 (GCVE-0-2026-21634)

Vulnerability from cvelistv5 – Published: 2026-01-05 16:47 – Updated: 2026-01-05 20:42

Summary

A malicious actor with access to the adjacent network could overflow the UniFi Protect Application (Version 6.1.79 and earlier) discovery protocol causing it to restart. Affected Products: UniFi Protect Application (Version 6.1.79 and earlier). Mitigation: Update your UniFi Protect Application to Version 6.2.72 or later.

Severity ?

6.5 (Medium)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Assigner

hackerone

References

URL

Tags

https://community.ui.com/releases/Security-Adviso…

Impacted products

	Vendor	Product	Version
	Ubiquiti Inc	UniFi Protect Application	Affected: 6.1.79 , < 6.2.72 (semver)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-21634",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-05T20:42:03.431328Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-119",
                "description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-05T20:42:08.706Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "UniFi Protect Application",
          "vendor": "Ubiquiti Inc",
          "versions": [
            {
              "lessThan": "6.2.72",
              "status": "affected",
              "version": "6.1.79",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A malicious actor with access to the adjacent network could overflow the UniFi Protect Application (Version 6.1.79 and earlier) discovery protocol causing it to restart.\r\n\r\n\r\nAffected Products:\r\nUniFi Protect Application (Version 6.1.79 and earlier). \r\n \r\nMitigation:\r\nUpdate your UniFi Protect Application to Version 6.2.72 or later."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-05T16:47:38.917Z",
        "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
        "shortName": "hackerone"
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      "references": [
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  },
  "cveMetadata": {
    "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
    "assignerShortName": "hackerone",
    "cveId": "CVE-2026-21634",
    "datePublished": "2026-01-05T16:47:38.917Z",
    "dateReserved": "2026-01-01T15:00:02.338Z",
    "dateUpdated": "2026-01-05T20:42:08.706Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-W6V6-CXGJ-7XH5

CVE-2026-21634 (GCVE-0-2026-21634)

Tags

Sightings

Nomenclature