CVE-2025-56568

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Source
https://cve.org/CVERecord?id=CVE-2025-56568
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-56568.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-56568
Published
2026-04-30T00:00:00Z
Modified
2026-07-15T15:20:05.909623Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Assertion failure vulnerability in the PCO (Protocol Configuration Options) parser in the SMF (Session Management Function) component of Open5GS before v2.7.5 allows remote attackers to cause denial of service via specially crafted NGAP messages containing malformed length fields in protocol configuration data.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/56xxx/CVE-2025-56568.json",
    "cna_assigner": "mitre"
}
References

Affected packages

Git / github.com/open5gs/open5gs

Affected ranges

Type
GIT
Repo
https://github.com/open5gs/open5gs
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
7dfd9a39649700c24c22f1978ed7a35541a72cca
Fixed
d7707879c943d2c952235382154d835b5849d54e
Database specific 
{
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "Open5GS"
        },
        {
            "fixed": "v2.7.5"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.1.1
v0.2.0
v0.3.0
v0.3.1
v0.3.10
v0.3.2
v0.3.3
v0.3.4
v0.3.5
v0.3.6
v0.3.8
v0.4.1
v0.4.2
v0.4.3
v0.4.4
v0.5.0
v0.5.1
v0.5.2
v1.*
v1.0.0
v1.1.0
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.2.4
v1.3.0
v2.*
v2.0.0
v2.0.18
v2.0.22
v2.1.0
v2.1.1
v2.1.3
v2.1.4
v2.1.5
v2.1.7
v2.2.0
v2.2.1
v2.2.6
v2.2.7
v2.2.8
v2.2.9
v2.3.0
v2.3.2
v2.3.6
v2.4.0
v2.4.1
v2.4.3
v2.4.4
v2.4.5
v2.4.7
v2.4.8
v2.4.9
v2.6.1
v2.6.2
v2.6.3
v2.6.4
v2.6.6
v2.7.0
v2.7.1
v2.7.2

Database specific

vanir_signatures_modified 
"2026-07-15T15:20:05Z"
vanir_signatures 
[
    {
        "signature_type": "Function",
        "target": {
            "file": "src/smf/gn-build.c",
            "function": "smf_gn_build_update_pdp_context_response"
        },
        "deprecated": false,
        "source": "https://github.com/open5gs/open5gs/commit/d7707879c943d2c952235382154d835b5849d54e",
        "id": "CVE-2025-56568-029db43e",
        "signature_version": "v1",
        "digest": {
            "function_hash": "201376818506725996628995496669661440284",
            "length": 5010.0
        }
    },
    {
        "signature_type": "Function",
        "target": {
            "file": "src/smf/gn-build.c",
            "function": "smf_gn_build_delete_pdp_context_response"
        },
        "deprecated": false,
        "source": "https://github.com/open5gs/open5gs/commit/d7707879c943d2c952235382154d835b5849d54e",
        "id": "CVE-2025-56568-446bffc1",
        "signature_version": "v1",
        "digest": {
            "function_hash": "18762893210066557441039359392188758928",
            "length": 782.0
        }
    },
    {
        "signature_type": "Function",
        "target": {
            "file": "src/smf/gsm-build.c",
            "function": "gsm_build_pdu_session_establishment_accept"
        },
        "deprecated": false,
        "source": "https://github.com/open5gs/open5gs/commit/d7707879c943d2c952235382154d835b5849d54e",
        "id": "CVE-2025-56568-6035c153",
        "signature_version": "v1",
        "digest": {
            "function_hash": "200550200010657645279078314602316151936",
            "length": 5520.0
        }
    },
    {
        "signature_type": "Function",
        "target": {
            "file": "src/smf/gn-build.c",
            "function": "smf_gn_build_create_pdp_context_response"
        },
        "deprecated": false,
        "source": "https://github.com/open5gs/open5gs/commit/d7707879c943d2c952235382154d835b5849d54e",
        "id": "CVE-2025-56568-7189d441",
        "signature_version": "v1",
        "digest": {
            "function_hash": "300029591059125079987295489686533232461",
            "length": 5854.0
        }
    },
    {
        "signature_type": "Line",
        "target": {
            "file": "src/smf/s5c-build.c"
        },
        "deprecated": false,
        "source": "https://github.com/open5gs/open5gs/commit/d7707879c943d2c952235382154d835b5849d54e",
        "id": "CVE-2025-56568-7233a89c",
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "101011293953955135524288880395480505865",
                "327703808544379261526843720036418051056",
                "289232479342995618827752438392660007672",
                "36039561829869703546424169759054551995",
                "96582357885000743822169611581083487851",
                "88105317133802199396513890048722600542",
                "128438770051580279059655926288858672381",
                "55659345462585623172768827108579185571",
                "163336925340110350381757996483114612664",
                "161068772916133478164190717020501664955",
                "153330965960650071894410345330146998677",
                "93027418992890212286288982570622134320",
                "101011293953955135524288880395480505865",
                "327703808544379261526843720036418051056",
                "289232479342995618827752438392660007672",
                "36039561829869703546424169759054551995",
                "163336925340110350381757996483114612664",
                "161068772916133478164190717020501664955",
                "153330965960650071894410345330146998677",
                "93027418992890212286288982570622134320",
                "203403233985969960833201513031017084775",
                "24517954744985235688526821321692903707",
                "18570619448525577022095911213058184210"
            ],
            "threshold": 0.9
        }
    },
    {
        "signature_type": "Function",
        "target": {
            "file": "src/smf/s5c-build.c",
            "function": "smf_s5c_build_create_session_response"
        },
        "deprecated": false,
        "source": "https://github.com/open5gs/open5gs/commit/d7707879c943d2c952235382154d835b5849d54e",
        "id": "CVE-2025-56568-7be32b26",
        "signature_version": "v1",
        "digest": {
            "function_hash": "62582208895951730163890606790351530560",
            "length": 7159.0
        }
    },
    {
        "signature_type": "Function",
        "target": {
            "file": "src/smf/context.c",
            "function": "smf_pco_build"
        },
        "deprecated": false,
        "source": "https://github.com/open5gs/open5gs/commit/d7707879c943d2c952235382154d835b5849d54e",
        "id": "CVE-2025-56568-7e614a72",
        "signature_version": "v1",
        "digest": {
            "function_hash": "87380732655856101830754453735518059473",
            "length": 6395.0
        }
    },
    {
        "signature_type": "Line",
        "target": {
            "file": "src/smf/gsm-build.c"
        },
        "deprecated": false,
        "source": "https://github.com/open5gs/open5gs/commit/d7707879c943d2c952235382154d835b5849d54e",
        "id": "CVE-2025-56568-919b51a6",
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "223530318864154323708817706102344305373",
                "6663916547192321179623307240797211391",
                "265662260305063153079231716266733259540",
                "105866844354916543792506963110035332133"
            ],
            "threshold": 0.9
        }
    },
    {
        "signature_type": "Function",
        "target": {
            "file": "src/smf/s5c-build.c",
            "function": "smf_s5c_build_delete_session_response"
        },
        "deprecated": false,
        "source": "https://github.com/open5gs/open5gs/commit/d7707879c943d2c952235382154d835b5849d54e",
        "id": "CVE-2025-56568-9d85089a",
        "signature_version": "v1",
        "digest": {
            "function_hash": "299548856178361070357830138773356062690",
            "length": 1417.0
        }
    },
    {
        "signature_type": "Line",
        "target": {
            "file": "src/smf/gn-build.c"
        },
        "deprecated": false,
        "source": "https://github.com/open5gs/open5gs/commit/d7707879c943d2c952235382154d835b5849d54e",
        "id": "CVE-2025-56568-b3684e75",
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "101011293953955135524288880395480505865",
                "327703808544379261526843720036418051056",
                "289232479342995618827752438392660007672",
                "36039561829869703546424169759054551995",
                "101011293953955135524288880395480505865",
                "327703808544379261526843720036418051056",
                "289232479342995618827752438392660007672",
                "36039561829869703546424169759054551995",
                "101011293953955135524288880395480505865",
                "327703808544379261526843720036418051056",
                "289232479342995618827752438392660007672",
                "36039561829869703546424169759054551995"
            ],
            "threshold": 0.9
        }
    },
    {
        "signature_type": "Line",
        "target": {
            "file": "lib/proto/types.c"
        },
        "deprecated": false,
        "source": "https://github.com/open5gs/open5gs/commit/d7707879c943d2c952235382154d835b5849d54e",
        "id": "CVE-2025-56568-b4ad464a",
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "189317724699250608444327117227152993759",
                "182505773729030979288844678680637972693",
                "325508491855004853249287559982859128280",
                "261528807653386942386740027317487005122"
            ],
            "threshold": 0.9
        }
    },
    {
        "signature_type": "Line",
        "target": {
            "file": "src/smf/context.c"
        },
        "deprecated": false,
        "source": "https://github.com/open5gs/open5gs/commit/d7707879c943d2c952235382154d835b5849d54e",
        "id": "CVE-2025-56568-f3abea52",
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "200626023759948285137229278443705420698",
                "287770126388937018259367574118268665851",
                "321313526699510578665974358611418413560",
                "156955013002716506581843480987255873274",
                "170126015462430149737807411213002959",
                "76587177393718745884737927945931721197",
                "47748601197808826336440659901219813000",
                "336021059925554829183731627778955108241"
            ],
            "threshold": 0.9
        }
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-56568.json"