Vulnerability-Lookup

CVE-2026-37228 (GCVE-0-2026-37228)

Vulnerability from cvelistv5 – Published: 2026-06-01 00:00 – Updated: 2026-06-02 13:02

Summary

FlexRIC v2.0.0 contains a reachable assertion in e2ap_recv_sctp_msg() (src/lib/ep/e2ap_ep.c). The function allocates a fixed 32KB receive buffer and enforces assert(rc < len) on the sctp_recvmsg() return value. A remote unauthenticated attacker can send a single SCTP message with payload >= 32,768 bytes to crash the near-RT RIC, iApp, E2 Agent, or xApp process via SIGABRT. No valid E2AP PDU is required. All four SCTP endpoint types (ports 36421 and 36422) share this vulnerable code path. In Release builds (NDEBUG), the stripped assertion leads to a signed-to-unsigned integer overflow and potential out-of-bounds read.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

n/a
CWE-617 - Reachable Assertion

Assigner

mitre

References

2 references

URL	Tags
https://gitlab.eurecom.fr/mosaic5g/flexric
https://github.com/MinamiKotor1/oran-security-adv…

Show details on NVD website

JSON

To clipboard

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              "attackVector": "NETWORK",
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              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
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              "userInteraction": "NONE",
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        }
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        },
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      "product_status:known_not_affected": "1",
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    "vulnrichment": {
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}

FKIE_CVE-2026-37228

Vulnerability from fkie_nvd - Published: 2026-06-01 19:16 - Updated: 2026-07-22 07:10

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	cve@mitre.org	https://github.com/MinamiKotor1/oran-security-advisories-zhongnan-luo/blob/main/advisories/CVE-2026-37228.md	Exploit, Mitigation, Third Party Advisory
	cve@mitre.org	https://gitlab.eurecom.fr/mosaic5g/flexric	Product

Impacted products

	Vendor	Product	Version
	mosaic5g	flexric	2.0.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mosaic5g:flexric:2.0.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "CFFCACEE-04A8-438A-A0BA-5C1D57943CF0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "FlexRIC v2.0.0 contains a reachable assertion in e2ap_recv_sctp_msg() (src/lib/ep/e2ap_ep.c). The function allocates a fixed 32KB receive buffer and enforces assert(rc \u003c len) on the sctp_recvmsg() return value. A remote unauthenticated attacker can send a single SCTP message with payload \u003e= 32,768 bytes to crash the near-RT RIC, iApp, E2 Agent, or xApp process via SIGABRT. No valid E2AP PDU is required. All four SCTP endpoint types (ports 36421 and 36422) share this vulnerable code path. In Release builds (NDEBUG), the stripped assertion leads to a signed-to-unsigned integer overflow and potential out-of-bounds read."
    },
    {
      "lang": "es",
      "value": "FlexRIC v2.0.0 contiene una aserci\u00f3n alcanzable en e2ap_recv_sctp_msg() (src/lib/ep/e2ap_ep.c). La funci\u00f3n asigna un b\u00fafer de recepci\u00f3n fijo de 32 KB y aplica assert(rc \u003c len) en el valor de retorno de sctp_recvmsg(). Un atacante remoto no autenticado puede enviar un \u00fanico mensaje SCTP con una carga \u00fatil \u003e= 32.768 bytes para bloquear el proceso near-RT RIC, iApp, E2 Agent o xApp a trav\u00e9s de SIGABRT. No se requiere una PDU E2AP v\u00e1lida. Los cuatro tipos de puntos finales SCTP (puertos 36421 y 36422) comparten esta ruta de c\u00f3digo vulnerable. En las compilaciones de lanzamiento (NDEBUG), la aserci\u00f3n eliminada conduce a un desbordamiento de entero con signo a sin signo y a una posible lectura fuera de l\u00edmites."
    }
  ],
  "id": "CVE-2026-37228",
  "lastModified": "2026-07-22T07:10:00.107",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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        },
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        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
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    ],
    "ssvcV203": [
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        "ssvcData": {
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  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Analyzed",
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      "type": "Secondary"
    }
  ]
}

GHSA-HGH6-R5P8-WCXJ

Vulnerability from github – Published: 2026-06-01 21:30 – Updated: 2026-06-02 15:32

Details

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-37228"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-01T19:16:33Z",
    "severity": "HIGH"
  },
  "details": "FlexRIC v2.0.0 contains a reachable assertion in e2ap_recv_sctp_msg() (src/lib/ep/e2ap_ep.c). The function allocates a fixed 32KB receive buffer and enforces assert(rc \u003c len) on the sctp_recvmsg() return value. A remote unauthenticated attacker can send a single SCTP message with payload \u003e= 32,768 bytes to crash the near-RT RIC, iApp, E2 Agent, or xApp process via SIGABRT. No valid E2AP PDU is required. All four SCTP endpoint types (ports 36421 and 36422) share this vulnerable code path. In Release builds (NDEBUG), the stripped assertion leads to a signed-to-unsigned integer overflow and potential out-of-bounds read.",
  "id": "GHSA-hgh6-r5p8-wcxj",
  "modified": "2026-06-02T15:32:01Z",
  "published": "2026-06-01T21:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-37228"
    },
    {
      "type": "WEB",
      "url": "https://github.com/MinamiKotor1/oran-security-advisories-zhongnan-luo/blob/main/advisories/CVE-2026-37228.md"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.eurecom.fr/mosaic5g/flexric"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-37228 (GCVE-0-2026-37228)

FKIE_CVE-2026-37228

GHSA-HGH6-R5P8-WCXJ

Tags

Sightings

Nomenclature