NASA cFS CCSDS Header Size cfe_sb_priv.c CFE_SB_TransmitMsg memory corruption

{
  "id": "7cc360e076de02119e00111f25e33283045c7b32d5163cb3cd42d0bb53540a26",
  "url": "https://osv.dev/vulnerability/CVE-2026-5475",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "NASA cFS CCSDS Header Size cfe_sb_priv.c CFE_SB_TransmitMsg memory corruption",
    "summary": "A vulnerability was determined in NASA cFS up to 7.0.0. This impacts the function CFE_SB_TransmitMsg of the file cfe_sb_priv.c of the component CCSDS Header Size Handler. Executing a manipulation can lead to memory corruption. The project was informed of the problem early through an issue report but has not responded yet.",
    "evidence": "osv:CVE-2026-5475",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-5475",
      "aliases": [
        "CVE-2026-5475"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nasa/cfe",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "215e2243735c2e2465fcf8629c29af5ba22d4d33"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nasa:core_flight_system:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "7.0.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            },
            {
              "repo": "https://github.com/nasa/cfs",
              "type": "GIT",
              "events": [
                {
                  "introduced": "54923de58353747c3f0bb737bc402ecea2ed8ed4"
                },
                {
                  "last_affected": "54923de58353747c3f0bb737bc402ecea2ed8ed4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "7.0"
                      },
                      {
                        "last_affected": "7.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "cpe": "cpe:2.3:a:nasa:core_flight_system:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "7.0.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "7.0",
            "v7.0.0",
            "equuleus-rc1",
            "draco-rc5",
            "draco-rc4",
            "draco-rc3",
            "draco-rc2",
            "draco-rc1",
            "v7.0.0-rc3",
            "v7.0.0-rc4",
            "v7.0.0-rc2",
            "v7.0.0-rc1",
            "v6.8.0-rc1+dev393",
            "v6.8.0-rc1",
            "6.7.3-bv",
            "6.7.0-bv",
            "v6.6.0a",
            "v6.5.0a",
            "v7.0.0-multitarget-demo"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-5475.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:26.882927455Z",
      "provider": "osv",
      "references": [
        "https://github.com/nasa/cFS/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5475.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-5475",
        "https://vuldb.com/submit/781951",
        "https://vuldb.com/vuln/355079",
        "https://github.com/nasa/cFS/issues/953",
        "https://vuldb.com/vuln/355079/cti"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-119"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5475.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-5475",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 493553,
  "published_at": "2026-04-03T17:15:10.831+00:00"
}