Vulnerability Monitor

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CVE-2021-21726


Some ZTE products have an input verification vulnerability in the diagnostic function interface. Due to insufficient verification of some parameters input by users, an attacker with high privileges can cause process exception by repeatedly inputting illegal parameters. This affects:<ZXONE 9700 , ZXONE 8700, ZXONE 19700><V1.40.021.021CP049, V1.0P02B219_@NCPM-RELEASE_2.40R1-20200914.set>


Security Impact Summary

This vulnerability carries a LOW severity rating with a CVSS v3.1 score of 2.3, requiring local system access to exploit with relatively low complexity without requiring user interaction . The vulnerability impacts and limited availability for affected systems. Impacting 6 products from zte, from zte, from zte and 3 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2021-03-12T19:15:15.007

Last Modified

2024-11-21T05:48:53.330

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 2.3 (LOW)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

3.9

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-20

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System zte zxone_9700_firmware 1.40.021.021cp049 Yes
Hardware zte zxone_9700 - No
Operating System zte zxone_8700_firmware 1.40.021.021cp049 Yes
Hardware zte zxone_8700 - No
Operating System zte zxone_19700_firmware 1.0p02b219_\@ncpm-release_2.40r1-20200914.set Yes
Hardware zte zxone_19700 - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For zte's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.