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6 vulnerabilities found for udr by free5gc

CVE-2026-27643 (GCVE-0-2026-27643)

Vulnerability from nvd – Published: 2026-02-24 00:21 – Updated: 2026-02-24 00:21
VLAI?
Title
free5GC has improper error handling in NEF with information exposure
Summary
free5GC UDR is the user data repository (UDR) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, the NEF component reliably leaks internal parsing error details (e.g., invalid character 'n' after top-level value) to remote clients, which can aid attackers in service fingerprinting. All deployments of free5GC using the Nnef_PfdManagement service may be affected. free5gc/udr pull request 56 contains a patch for the issue. There is no direct workaround at the application level. The recommendation is to apply the provided patch.
CWE
  • CWE-209 - Generation of Error Message Containing Sensitive Information
Assigner
Impacted products
Vendor Product Version
free5gc udr Affected: <= 1.4.1
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "udr",
          "vendor": "free5gc",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 1.4.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "free5GC UDR is the user data repository (UDR) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, the NEF component reliably leaks internal parsing error details (e.g., invalid character \u0027n\u0027 after top-level value) to remote clients, which can aid attackers in service fingerprinting. All deployments of free5GC  using the Nnef_PfdManagement service may be affected. free5gc/udr pull request 56 contains a patch for the issue. There is no direct workaround at the application level. The recommendation is to apply the provided patch."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-209",
              "description": "CWE-209: Generation of Error Message Containing Sensitive Information",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-24T00:21:18.510Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/free5gc/free5gc/security/advisories/GHSA-6468-f87j-6g82",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/free5gc/free5gc/security/advisories/GHSA-6468-f87j-6g82"
        },
        {
          "name": "https://github.com/free5gc/free5gc/issues/753",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/free5gc/free5gc/issues/753"
        },
        {
          "name": "https://github.com/free5gc/udr/pull/56",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/free5gc/udr/pull/56"
        },
        {
          "name": "https://github.com/free5gc/udr/commit/754d23b03755ad59077ed529ce3b971e477080c4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/free5gc/udr/commit/754d23b03755ad59077ed529ce3b971e477080c4"
        }
      ],
      "source": {
        "advisory": "GHSA-6468-f87j-6g82",
        "discovery": "UNKNOWN"
      },
      "title": "free5GC has improper error handling in NEF with information exposure"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-27643",
    "datePublished": "2026-02-24T00:21:18.510Z",
    "dateReserved": "2026-02-20T22:02:30.029Z",
    "dateUpdated": "2026-02-24T00:21:18.510Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2025-69253 (GCVE-0-2025-69253)

Vulnerability from nvd – Published: 2026-02-24 00:01 – Updated: 2026-02-24 00:01
VLAI?
Title
free5GC vulnerable to improper error handling in NEF with information exposure
Summary
free5GC is an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 of the User Data Repository are affected by Improper Error Handling with Information Exposure. The NEF component reliably leaks internal parsing error details (e.g., invalid character 'n' after top-level value) to remote clients, which can aid attackers in service fingerprinting. All deployments of free5GC using the Nnef_PfdManagement service may be vulnerable. free5gc/udr pull request 56 contains a patch. No direct workaround is available at the application level. Applying the official patch is recommended.
CWE
  • CWE-209 - Generation of Error Message Containing Sensitive Information
Assigner
Impacted products
Vendor Product Version
free5gc udr Affected: <= 1.4.1
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "udr",
          "vendor": "free5gc",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 1.4.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "free5GC is an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 of the User Data Repository are affected by Improper Error Handling with Information Exposure. The NEF component reliably leaks internal parsing error details (e.g., invalid character \u0027n\u0027 after top-level value) to remote clients, which can aid attackers in service fingerprinting. All deployments of free5GC using the Nnef_PfdManagement service may be vulnerable. free5gc/udr pull request 56 contains a patch. No direct workaround is available at the application level. Applying the official patch is recommended."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-209",
              "description": "CWE-209: Generation of Error Message Containing Sensitive Information",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-24T00:01:05.794Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/free5gc/free5gc/security/advisories/GHSA-cj2h-x8qm-xgwc",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/free5gc/free5gc/security/advisories/GHSA-cj2h-x8qm-xgwc"
        },
        {
          "name": "https://github.com/free5gc/free5gc/issues/753",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/free5gc/free5gc/issues/753"
        },
        {
          "name": "https://github.com/free5gc/udr/pull/56",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/free5gc/udr/pull/56"
        },
        {
          "name": "https://github.com/free5gc/udr/commit/754d23b03755ad59077ed529ce3b971e477080c4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/free5gc/udr/commit/754d23b03755ad59077ed529ce3b971e477080c4"
        }
      ],
      "source": {
        "advisory": "GHSA-cj2h-x8qm-xgwc",
        "discovery": "UNKNOWN"
      },
      "title": "free5GC vulnerable to improper error handling in NEF with information exposure"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-69253",
    "datePublished": "2026-02-24T00:01:05.794Z",
    "dateReserved": "2025-12-30T14:07:48.460Z",
    "dateUpdated": "2026-02-24T00:01:05.794Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2025-69208 (GCVE-0-2025-69208)

Vulnerability from nvd – Published: 2026-02-23 21:18 – Updated: 2026-02-23 21:18
VLAI?
Title
free5GC UDR's NEF incorrectly returns 500 for missing PFD data (UDR 404) in Nnef_PfdManagement GET request
Summary
free5GC UDR is the user data repository (UDR) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. Versions prior to 1.4.1 contain an Improper Error Handling vulnerability with Information Exposure. All deployments of free5GC using the Nnef_PfdManagement service may be affected. The NEF component reliably leaks internal parsing errors (e.g., invalid character 'n' after top-level value) to remote clients. This can aid attackers in fingerprinting server software and logic flows. Version 1.4.1 fixes the issue. There is no direct workaround at the application level. The recommended mitigation is to apply the provided patch.
CWE
  • CWE-209 - Generation of Error Message Containing Sensitive Information
Assigner
Impacted products
Vendor Product Version
free5gc udr Affected: < 1.4.1
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "udr",
          "vendor": "free5gc",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.4.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "free5GC UDR is the user data repository (UDR) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. Versions prior to 1.4.1 contain an Improper Error Handling vulnerability with Information Exposure. All deployments of free5GC using the Nnef_PfdManagement service may be affected. The NEF component reliably leaks internal parsing errors (e.g., invalid character \u0027n\u0027 after top-level value) to remote clients. This can aid attackers in fingerprinting server software and logic flows. Version 1.4.1 fixes the issue. There is no direct workaround at the application level. The recommended mitigation is to apply the provided patch."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 2.7,
            "baseSeverity": "LOW",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-209",
              "description": "CWE-209: Generation of Error Message Containing Sensitive Information",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-23T21:18:33.497Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/free5gc/free5gc/security/advisories/GHSA-f3pc-w7jp-4jh2",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/free5gc/free5gc/security/advisories/GHSA-f3pc-w7jp-4jh2"
        },
        {
          "name": "https://github.com/free5gc/free5gc/issues/753",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/free5gc/free5gc/issues/753"
        },
        {
          "name": "https://github.com/free5gc/udr/pull/56",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/free5gc/udr/pull/56"
        },
        {
          "name": "https://github.com/free5gc/udr/commit/91bb34bd96e1c89b3fddca80db8b90049da61ebb",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/free5gc/udr/commit/91bb34bd96e1c89b3fddca80db8b90049da61ebb"
        }
      ],
      "source": {
        "advisory": "GHSA-f3pc-w7jp-4jh2",
        "discovery": "UNKNOWN"
      },
      "title": "free5GC UDR\u0027s NEF incorrectly returns 500 for missing PFD data (UDR 404) in Nnef_PfdManagement GET request"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-69208",
    "datePublished": "2026-02-23T21:18:33.497Z",
    "dateReserved": "2025-12-29T14:55:59.816Z",
    "dateUpdated": "2026-02-23T21:18:33.497Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-27643 (GCVE-0-2026-27643)

Vulnerability from cvelistv5 – Published: 2026-02-24 00:21 – Updated: 2026-02-24 00:21
VLAI?
Title
free5GC has improper error handling in NEF with information exposure
Summary
free5GC UDR is the user data repository (UDR) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, the NEF component reliably leaks internal parsing error details (e.g., invalid character 'n' after top-level value) to remote clients, which can aid attackers in service fingerprinting. All deployments of free5GC using the Nnef_PfdManagement service may be affected. free5gc/udr pull request 56 contains a patch for the issue. There is no direct workaround at the application level. The recommendation is to apply the provided patch.
CWE
  • CWE-209 - Generation of Error Message Containing Sensitive Information
Assigner
Impacted products
Vendor Product Version
free5gc udr Affected: <= 1.4.1
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "udr",
          "vendor": "free5gc",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 1.4.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "free5GC UDR is the user data repository (UDR) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, the NEF component reliably leaks internal parsing error details (e.g., invalid character \u0027n\u0027 after top-level value) to remote clients, which can aid attackers in service fingerprinting. All deployments of free5GC  using the Nnef_PfdManagement service may be affected. free5gc/udr pull request 56 contains a patch for the issue. There is no direct workaround at the application level. The recommendation is to apply the provided patch."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-209",
              "description": "CWE-209: Generation of Error Message Containing Sensitive Information",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-24T00:21:18.510Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/free5gc/free5gc/security/advisories/GHSA-6468-f87j-6g82",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/free5gc/free5gc/security/advisories/GHSA-6468-f87j-6g82"
        },
        {
          "name": "https://github.com/free5gc/free5gc/issues/753",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/free5gc/free5gc/issues/753"
        },
        {
          "name": "https://github.com/free5gc/udr/pull/56",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/free5gc/udr/pull/56"
        },
        {
          "name": "https://github.com/free5gc/udr/commit/754d23b03755ad59077ed529ce3b971e477080c4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/free5gc/udr/commit/754d23b03755ad59077ed529ce3b971e477080c4"
        }
      ],
      "source": {
        "advisory": "GHSA-6468-f87j-6g82",
        "discovery": "UNKNOWN"
      },
      "title": "free5GC has improper error handling in NEF with information exposure"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-27643",
    "datePublished": "2026-02-24T00:21:18.510Z",
    "dateReserved": "2026-02-20T22:02:30.029Z",
    "dateUpdated": "2026-02-24T00:21:18.510Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2025-69253 (GCVE-0-2025-69253)

Vulnerability from cvelistv5 – Published: 2026-02-24 00:01 – Updated: 2026-02-24 00:01
VLAI?
Title
free5GC vulnerable to improper error handling in NEF with information exposure
Summary
free5GC is an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 of the User Data Repository are affected by Improper Error Handling with Information Exposure. The NEF component reliably leaks internal parsing error details (e.g., invalid character 'n' after top-level value) to remote clients, which can aid attackers in service fingerprinting. All deployments of free5GC using the Nnef_PfdManagement service may be vulnerable. free5gc/udr pull request 56 contains a patch. No direct workaround is available at the application level. Applying the official patch is recommended.
CWE
  • CWE-209 - Generation of Error Message Containing Sensitive Information
Assigner
Impacted products
Vendor Product Version
free5gc udr Affected: <= 1.4.1
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "udr",
          "vendor": "free5gc",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 1.4.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "free5GC is an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 of the User Data Repository are affected by Improper Error Handling with Information Exposure. The NEF component reliably leaks internal parsing error details (e.g., invalid character \u0027n\u0027 after top-level value) to remote clients, which can aid attackers in service fingerprinting. All deployments of free5GC using the Nnef_PfdManagement service may be vulnerable. free5gc/udr pull request 56 contains a patch. No direct workaround is available at the application level. Applying the official patch is recommended."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-209",
              "description": "CWE-209: Generation of Error Message Containing Sensitive Information",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-24T00:01:05.794Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/free5gc/free5gc/security/advisories/GHSA-cj2h-x8qm-xgwc",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/free5gc/free5gc/security/advisories/GHSA-cj2h-x8qm-xgwc"
        },
        {
          "name": "https://github.com/free5gc/free5gc/issues/753",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/free5gc/free5gc/issues/753"
        },
        {
          "name": "https://github.com/free5gc/udr/pull/56",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/free5gc/udr/pull/56"
        },
        {
          "name": "https://github.com/free5gc/udr/commit/754d23b03755ad59077ed529ce3b971e477080c4",
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          ],
          "url": "https://github.com/free5gc/udr/commit/754d23b03755ad59077ed529ce3b971e477080c4"
        }
      ],
      "source": {
        "advisory": "GHSA-cj2h-x8qm-xgwc",
        "discovery": "UNKNOWN"
      },
      "title": "free5GC vulnerable to improper error handling in NEF with information exposure"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-69253",
    "datePublished": "2026-02-24T00:01:05.794Z",
    "dateReserved": "2025-12-30T14:07:48.460Z",
    "dateUpdated": "2026-02-24T00:01:05.794Z",
    "state": "PUBLISHED"
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CVE-2025-69208 (GCVE-0-2025-69208)

Vulnerability from cvelistv5 – Published: 2026-02-23 21:18 – Updated: 2026-02-23 21:18
VLAI?
Title
free5GC UDR's NEF incorrectly returns 500 for missing PFD data (UDR 404) in Nnef_PfdManagement GET request
Summary
free5GC UDR is the user data repository (UDR) for free5GC, an an open-source project for 5th generation (5G) mobile core networks. Versions prior to 1.4.1 contain an Improper Error Handling vulnerability with Information Exposure. All deployments of free5GC using the Nnef_PfdManagement service may be affected. The NEF component reliably leaks internal parsing errors (e.g., invalid character 'n' after top-level value) to remote clients. This can aid attackers in fingerprinting server software and logic flows. Version 1.4.1 fixes the issue. There is no direct workaround at the application level. The recommended mitigation is to apply the provided patch.
CWE
  • CWE-209 - Generation of Error Message Containing Sensitive Information
Assigner
Impacted products
Vendor Product Version
free5gc udr Affected: < 1.4.1
Create a notification for this product.
Show details on NVD website

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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 2.7,
            "baseSeverity": "LOW",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-209",
              "description": "CWE-209: Generation of Error Message Containing Sensitive Information",
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              "type": "CWE"
            }
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      "providerMetadata": {
        "dateUpdated": "2026-02-23T21:18:33.497Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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      "references": [
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          "name": "https://github.com/free5gc/free5gc/security/advisories/GHSA-f3pc-w7jp-4jh2",
          "tags": [
            "x_refsource_CONFIRM"
          ],
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          "tags": [
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          "tags": [
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        }
      ],
      "source": {
        "advisory": "GHSA-f3pc-w7jp-4jh2",
        "discovery": "UNKNOWN"
      },
      "title": "free5GC UDR\u0027s NEF incorrectly returns 500 for missing PFD data (UDR 404) in Nnef_PfdManagement GET request"
    }
  },
  "cveMetadata": {
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