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4 vulnerabilities found for udm by free5gc

CVE-2026-27642 (GCVE-0-2026-27642)
Vulnerability from cvelistv5
Published
2026-02-24 00:18
Modified
2026-02-26 14:33
Severity ?
6.6 (Medium) - 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
CWE
  • CWE-20 - Improper Input Validation
Summary
free5gc UDM provides Unified Data Management (UDM) for free5GC, an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, remote attackers can inject control characters (e.g., %00) into the supi parameter, triggering internal URL parsing errors (net/url: invalid control character). This exposes system-level error details and can be used for service fingerprinting. All deployments of free5GC using the UDM Nudm_UEAU service may be affected. free5gc/udm pull request 75 contains a fix for the issue. No direct workaround is available at the application level. Applying the official patch is recommended.
References
Impacted products
Vendor Product Version
free5gc udm Version: <= 1.4.1
 Create a notification for this product.
Show details on NVD website

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CVE-2025-69252 (GCVE-0-2025-69252)
Vulnerability from cvelistv5
Published
2026-02-23 23:56
Modified
2026-02-25 16:21
Severity ?
6.6 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
CWE
  • CWE-476 - NULL Pointer Dereference
Summary
free5gc UDM provides Unified Data Management (UDM) for free5GC, an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 have a NULL Pointer Dereference vulnerability. Remote unauthenticated attackers can trigger a service panic (Denial of Service) by sending a crafted PUT request with an unexpected ueId, crashing the UDM service. All deployments of free5GC using the UDM component may be affected. free5gc/udm pull request 76 contains a fix for the issue. No direct workaround is available at the application level. Applying the official patch is recommended.
References
Impacted products
Vendor Product Version
free5gc udm Version: <= 1.4.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2025-69251 (GCVE-0-2025-69251)
Vulnerability from cvelistv5
Published
2026-02-23 23:53
Modified
2026-02-25 16:17
Severity ?
6.6 (Medium) - 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
CWE
  • CWE-20 - Improper Input Validation
Summary
free5gc UDM provides Unified Data Management (UDM) for free5GC, an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, remote attackers can inject control characters (e.g., %00) into the ueId parameter, triggering internal URL parsing errors (net/url: invalid control character). This exposes system implementation details and can aid in service fingerprinting. All deployments of free5GC using the UDM Nudm_UECM service may be affected. free5gc/udm pull request 76 contains a fix for the issue. No direct workaround is available at the application level. Applying the official patch is recommended.
References
Impacted products
Vendor Product Version
free5gc udm Version: <= 1.4.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2025-69250 (GCVE-0-2025-69250)
Vulnerability from cvelistv5
Published
2026-02-23 23:45
Modified
2026-02-25 16:15
Severity ?
6.6 (Medium) - 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
CWE
  • CWE-754 - Improper Check for Unusual or Exceptional Conditions
  • CWE-20 - Improper Input Validation
Summary
free5gc UDM provides Unified Data Management (UDM) for free5GC, an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, the service reliably leaks detailed internal error messages (e.g., strconv.ParseInt parsing errors) to remote clients when processing invalid pduSessionId inputs. This exposes implementation details and can be used for service fingerprinting. All deployments of free5GC using the UDM Nudm_UECM DELETE service may be vulnerable. free5gc/udm pull request 76 contains a fix for the issue. No direct workaround is available at the application level. Applying the official patch is recommended.
References
Impacted products
Vendor Product Version
free5gc udm Version: <= 1.4.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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      "source": {
        "advisory": "GHSA-6w77-5pqh-83rm",
        "discovery": "UNKNOWN"
      },
      "title": "free5GC has Improper Error Handling in UDM, Leading to Information Exposure"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-69250",
    "datePublished": "2026-02-23T23:45:02.681Z",
    "dateReserved": "2025-12-30T14:07:18.370Z",
    "dateUpdated": "2026-02-25T16:15:24.603Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}