FKIE_CVE-2021-21723

Vulnerability from fkie_nvd - Published: 2021-01-26 18:16 - Updated: 2026-06-17 03:36
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Some ZTE products have a DoS vulnerability. Due to the improper handling of memory release in some specific scenarios, a remote attacker can trigger the vulnerability by performing a series of operations, resulting in memory leak, which may eventually lead to device denial of service. This affects: ZXR10 9904, ZXR10 9908, ZXR10 9916, ZXR10 9904-S, ZXR10 9908-S; all versions up to V1.01.10.B12.
References
psirt@zte.com.cnhttp://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014424Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014424Vendor Advisory
Impacted products
Vendor Product Version
zte zxr10_9904_firmware *
zte zxr10_9904 -
zte zxr10_9908_firmware *
zte zxr10_9908 -
zte zxr10_9916_firmware *
zte zxr10_9916 -
zte zxr10_9904-s_firmware *
zte zxr10_9904-s -
zte zxr10_9908-s_firmware *
zte zxr10_9908-s -
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      "lang": "en",
      "value": "Some ZTE products have a DoS vulnerability. Due to the improper handling of memory release in some specific scenarios, a remote attacker can trigger the vulnerability by performing a series of operations, resulting in memory leak, which may eventually lead to device denial of service. This affects: ZXR10 9904, ZXR10 9908, ZXR10 9916, ZXR10 9904-S, ZXR10 9908-S; all versions up to V1.01.10.B12."
    },
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    }
  ],
  "id": "CVE-2021-21723",
  "lastModified": "2026-06-17T03:36:02.517",
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
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          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "version": "2.0"
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        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
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          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
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  "published": "2021-01-26T18:16:18.803",
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      "tags": [
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  "vulnStatus": "Modified",
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          "value": "CWE-401"
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      "source": "nvd@nist.gov",
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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