CVE-2021-45815

Name: CVE-2021-45815
Creator: NVD / NIST
Published: 2021-12-30T13:15:07.463+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.56%

Last modified Jun 17, 2026

CVE-2021-45815 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Quectel UC20 UMTS/HSPA+ UC20 6.3.14 is affected by a Cross Site Scripting (XSS) vulnerability.. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.56%

42.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Quectel	Uc20 Firmware	6.3.14

References

https://drive.google.com/file/d/1SizrkduiRFzjDcld4e9F_RV6N9DcIOQE/view?usp=sharingThird Party Advisory
https://drive.google.com/file/d/1SizrkduiRFzjDcld4e9F_RV6N9DcIOQE/view?usp=sharingThird Party Advisory

Timeline

Published: Dec 30, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-45815?

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

How severe is CVE-2021-45815?

CVE-2021-45815 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.

How do I fix CVE-2021-45815?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-45815?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST