CVE-2026-15720 (GCVE-0-2026-15720)

Vulnerability from cvelistv5 – Published: 2026-07-14 18:20 – Updated: 2026-07-14 18:20
VLAI
Title
Pre-auth heap out-of-bounds read in the AMF NAS 5GS mobile-identity handler
Summary
In Open5GS through version 2.7.7 a pre-authentication heap out-of-bounds read in the AMF NAS 5GS mobile-identity handler may result in subscriber-wide denial of service.
CWE
Assigner
References
Impacted products
Vendor Product Version
open5gs open5gs Affected: 0 , ≤ 2.7.7 (semver)
Create a notification for this product.
Date Public
2026-06-04 18:11
Show details on NVD website

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              "version": "0",
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      ],
      "datePublic": "2026-06-04T18:11:00.000Z",
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            }
          ],
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
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      "problemTypes": [
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            {
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              "description": "CWE-125 Out-of-bounds read",
              "lang": "en",
              "type": "CWE"
            }
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      "providerMetadata": {
        "dateUpdated": "2026-07-14T18:20:22.732Z",
        "orgId": "74b3a70d-cca6-4d34-9789-e83b222ae3be",
        "shortName": "redhat-cnalr"
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        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
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      }
    }
  },
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    "assignerShortName": "redhat-cnalr",
    "cveId": "CVE-2026-15720",
    "datePublished": "2026-07-14T18:20:22.732Z",
    "dateReserved": "2026-07-14T12:29:33.633Z",
    "dateUpdated": "2026-07-14T18:20:22.732Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-15720\",\"sourceIdentifier\":\"74b3a70d-cca6-4d34-9789-e83b222ae3be\",\"published\":\"2026-07-14T19:16:51.470\",\"lastModified\":\"2026-07-14T19:16:51.470\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In\u00a0Open5GS through version 2.7.7 a pre-authentication\u00a0heap out-of-bounds read in the AMF NAS 5GS mobile-identity handler may result in\u00a0subscriber-wide denial of service.\"}],\"affected\":[{\"source\":\"74b3a70d-cca6-4d34-9789-e83b222ae3be\",\"affectedData\":[{\"vendor\":\"open5gs\",\"product\":\"open5gs\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"2.7.7\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"74b3a70d-cca6-4d34-9789-e83b222ae3be\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H\",\"baseScore\":8.6,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":4.0}]},\"weaknesses\":[{\"source\":\"74b3a70d-cca6-4d34-9789-e83b222ae3be\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"references\":[{\"url\":\"https://github.com/open5gs/open5gs/security/advisories/GHSA-f4mx-3x6p-cfwp\",\"source\":\"74b3a70d-cca6-4d34-9789-e83b222ae3be\"}]}}"
  }
}



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