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CVE-2026-1587

Status: ModifiedMedium (5.5)—

A vulnerability has been found in Open5GS up to 2.7.6. The affected element is the function sgwc_s11_handle_modify_bearer_request of the file /sgwc/s11-handler.c of the component SGWC. The manipulation leads to denial of service. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Applying a patch is the recommended action to fix this issue. The issue report is flagged as already-fixed.

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)

Open5gs — Open5gs

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2026-1587",
  "cveTags": [],
  "metrics": {
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          "options": [
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          "version": "2.0.3",
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          "confidentialityImpact": "NONE"
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        "obtainAllPrivilege": false,
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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          "valueDensity": "NOT_DEFINED",
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          "exploitMaturity": "PROOF_OF_CONCEPT",
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          "subIntegrityImpact": "NONE",
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          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "modifiedUserInteraction": "NOT_DEFINED",
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          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
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      "affectedData": [
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            "cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*"
          ],
          "vendor": "n/a",
          "modules": [
            "SGWC"
          ],
          "product": "Open5GS",
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              "version": "2.7.1"
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              "version": "2.7.4"
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              "version": "2.7.5"
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  ],
  "published": "2026-01-29T13:15:53.717",
  "references": [
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      "url": "https://github.com/open5gs/open5gs/",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://github.com/open5gs/open5gs/issues/4272",
      "tags": [
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      "source": "cna@vuldb.com"
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      "source": "cna@vuldb.com"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "cna@vuldb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-404"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability has been found in Open5GS up to 2.7.6. The affected element is the function sgwc_s11_handle_modify_bearer_request of the file /sgwc/s11-handler.c of the component SGWC. The manipulation leads to denial of service. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Applying a patch is the recommended action to fix this issue. The issue report is flagged as already-fixed."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad ha sido encontrada en Open5GS hasta la versión 2.7.6. El elemento afectado es la función sgwc_s11_handle_modify_bearer_request del archivo /sgwc/s11-handler.c del componente SGWC. La manipulación conduce a denegación de servicio. Es posible iniciar el ataque remotamente. El exploit ha sido divulgado al público y puede ser utilizado. Aplicar un parche es la acción recomendada para solucionar este problema. El informe del problema está marcado como ya solucionado."
    }
  ],
  "lastModified": "2026-06-17T10:16:07.043",
  "configurations": [
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              "versionEndIncluding": "2.7.6"
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}