What is the CVSS score of CVE-2021-45815?

CVE-2021-45815 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%.

Uc20 Firmware CVE-2021-45815

MEDIUM

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

2021-12-30 cve@mitre.org

XSS Uc20 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

Dec 30, 2021 - 13:15 nvd

MEDIUM 6.1

DescriptionNVD

Quectel UC20 UMTS/HSPA+ UC20 6.3.14 is affected by a Cross Site Scripting (XSS) vulnerability.

AnalysisAI

Quectel UC20 UMTS/HSPA+ UC20 6.3.14 is affected by a Cross Site Scripting (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. Quectel UC20 UMTS/HSPA+ UC20 6.3.14 is affected by a Cross Site Scripting (XSS) vulnerability. Affected products include: Quectel Uc20 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.