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CVE-2023-45231

Status: ModifiedMedium (6.5)—

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing  Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Tianocore — Edk2

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2023-45231",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-45231",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-08-30T18:59:05.991713Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
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          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      },
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          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
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        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "infosec@edk2.groups.io",
      "affectedData": [
        {
          "vendor": "TianoCore",
          "product": "edk2",
          "versions": [
            {
              "status": "affected",
              "version": "edk2-stable202308"
            }
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          "defaultStatus": "unaffected"
        }
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  ],
  "published": "2024-01-16T16:15:11.910",
  "references": [
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      "source": "infosec@edk2.groups.io"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SJ42V7O7F4OU6R7QSQQECLB6LDHKZIMQ/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.kb.cert.org/vuls/id/132380",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "infosec@edk2.groups.io",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "EDK2's Network Package is susceptible to an out-of-bounds read\n vulnerability when processing  Neighbor Discovery Redirect message. This\n vulnerability can be exploited by an attacker to gain unauthorized \naccess and potentially lead to a loss of Confidentiality."
    },
    {
      "lang": "es",
      "value": "El paquete de red de EDK2 es susceptible a una vulnerabilidad de lectura fuera de los límites al procesar el mensaje de redirección de descubrimiento de vecinos. Un atacante puede aprovechar esta vulnerabilidad para obtener acceso no autorizado y potencialmente provocar una pérdida de confidencialidad."
    }
  ],
  "lastModified": "2026-06-17T06:28:29.763",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:tianocore:edk2:*:*:*:*:*:*:*:*",
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              "matchCriteriaId": "3CEB3105-57CC-4096-81D3-D58005813C4B",
              "versionEndIncluding": "202311"
            }
          ],
          "operator": "OR"
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      ]
    }
  ],
  "sourceIdentifier": "infosec@edk2.groups.io"
}