What is the CVSS score of CVE-2021-21722?

CVE-2021-21722 has a CVSS 3.1 base score of 4.4 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.4%.

Zxv10 B860A Firmware CVE-2021-21722

MEDIUM

Insertion of Sensitive Information into Log File (CWE-532)

2021-01-14 psirt@zte.com.cn

Zte Information Disclosure Zxv10 B860A Firmware

4.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.4 MEDIUM

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

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:H/I:N/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Jan 14, 2021 - 16:15 nvd

MEDIUM 4.4

DescriptionNVD

A ZTE Smart STB is impacted by an information leak vulnerability. The device did not fully verify the log, so attackers could use this vulnerability to obtain sensitive user information for further information detection and attacks. This affects: ZXV10 B860A V2.1-T_V0032.1.1.04_jiangsuTelecom.

AnalysisAI

A ZTE Smart STB is impacted by an information leak vulnerability. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-532. A ZTE Smart STB is impacted by an information leak vulnerability. The device did not fully verify the log, so attackers could use this vulnerability to obtain sensitive user information for further information detection and attacks. This affects: ZXV10 B860A V2.1-T_V0032.1.1.04_jiangsuTelecom. Affected products include: Zte Zxv10 B860A 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.