What is the CVSS score of CVE-2021-21726?

CVE-2021-21726 has a CVSS 3.1 base score of 2.3 (Low). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L. EPSS exploitation probability: 0.4%.

Zxone 9700 Firmware CVE-2021-21726

LOW

Improper Input Validation (CWE-20)

2021-03-12 psirt@zte.com.cn

Zte Information Disclosure Zxone 9700 Firmware Zxone 8700 Firmware Zxone 19700 Firmware

2.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

2.3 LOW

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Lifecycle Timeline

CVE Published

Mar 12, 2021 - 19:15 nvd

LOW 2.3

DescriptionNVD

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>

AnalysisAI

Some ZTE products have an input verification vulnerability in the diagnostic function interface. Rated low severity (CVSS 2.3), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-20. 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> Affected products include: Zte Zxone 9700 Firmware, Zte Zxone 8700 Firmware, Zte Zxone 19700 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.