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CVE-2018-7356

Status: ModifiedHigh (7.5)—

All versions up to V3.03.10.B23P2 of ZTE ZXR10 8905E product are impacted by TCP Initial Sequence Number (ISN) reuse vulnerability, which can generate easily predictable ISN, and allows remote attackers to spoof connections.

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)

ZTE — Zxr10 8905e Firmware

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-7356",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
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        "obtainUserPrivilege": false,
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          "baseScore": 5.6,
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          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
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  "published": "2018-11-01T13:29:00.723",
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      "url": "http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1009783",
      "tags": [
        "Vendor Advisory"
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      "source": "psirt@zte.com.cn"
    },
    {
      "url": "http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1009783",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-294"
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  ],
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      "lang": "en",
      "value": "All versions up to V3.03.10.B23P2 of ZTE ZXR10 8905E product are impacted by TCP Initial Sequence Number (ISN) reuse vulnerability, which can generate easily predictable ISN, and allows remote attackers to spoof connections."
    },
    {
      "lang": "es",
      "value": "Todas las versiones hasta la V3.03.10.B23P2 del producto ZTE ZXR10 8905E se han visto afectadas por una vulnerabilidad de reutilización TCP Initial Sequence Number (ISN), que puede generar ISN fácilmente predecibles y permite que los atacantes remotos suplanten conexiones."
    }
  ],
  "lastModified": "2026-06-17T02:03:03.677",
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  "sourceIdentifier": "psirt@zte.com.cn"
}