What is the CVSS score of CVE-2021-21747?

CVE-2021-21747 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.6%.

Mf971R Firmware CVE-2021-21747

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2021-10-20 psirt@zte.com.cn

Zte XSS Mf971R Firmware

6.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.1 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Oct 20, 2021 - 15:15 nvd

MEDIUM 6.1

DescriptionNVD

ZTE MF971R product has reflective XSS vulnerability. An attacker could use the vulnerability to obtain cookie information.

AnalysisAI

ZTE MF971R product has reflective XSS vulnerability. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. ZTE MF971R product has reflective XSS vulnerability. An attacker could use the vulnerability to obtain cookie information. Affected products include: Zte Mf971R Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.