CVE-2020-6881

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
ZTE E8810/E8820/E8822 series routers have an MQTT DoS vulnerability, which is caused by the failure of the device to verify the validity of abnormal messages. A remote attacker could connect to the MQTT server and send an MQTT exception message to the specified device, which will cause the device to deny service. This affects:<ZXHN E8810, ZXHN E8820, ZXHN E8822><E8810 V1.0.26, E8810 V2.0.1, E8820 V1.1.3L, E8820 V2.0.13, E8822 V2.0.13>
Overview
  • CVE ID
  • CVE-2020-6881
  • Assigner
  • psirt@zte.com.cn
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-12-21T18:15:16
  • Last Modified Date
  • 2020-12-22T20:32:43
Weakness Enumerations
CWE URL
CWE-346 http://cwe.mitre.org/data/definitions/346.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:zte:zxhn_e8810_firmware:1.0.26:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:zte:zxhn_e8810_firmware:2.0.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:zte:zxhn_e8810:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:zte:zxhn_e8820_firmware:1.1.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:zte:zxhn_e8820_firmware:2.0.13:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:zte:zxhn_e8820:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:zte:zxhn_e8822_firmware:2.0.13:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:zte:zxhn_e8822:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014202 Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-6881
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6881
History
Created Old Value New Value Data Type Notes
2022-05-10 07:29:36 Added to TrackCVE
2022-12-05 18:38:23 2020-12-21T18:15Z 2020-12-21T18:15:16 CVE Published Date updated
2022-12-05 18:38:23 2020-12-22T20:32:43 CVE Modified Date updated
2022-12-05 18:38:23 Analyzed Vulnerability Status updated