CVE-2020-16263

Name: CVE-2020-16263
Creator: NVD / NIST
Published: 2020-10-28T18:15:13.303+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 1.19%

Last modified Jun 17, 2026

CVE-2020-16263 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. Winston 1.5.4 devices have a CORS configuration that trusts arbitrary origins. This allows requests to be made and viewed by arbitrary origins.. EPSS estimates a 1.19% chance of exploitation in the next 30 days.

Description

Winston 1.5.4 devices have a CORS configuration that trusts arbitrary origins. This allows requests to be made and viewed by arbitrary origins.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

1.19%

64.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-668

Affected Software

Vendor	Product	Versions
Winstonprivacy	Winston Firmware	1.5.4

References

https://labs.bishopfox.com/advisories/winston-privacy-version-1.5.4Exploit, Third Party Advisory
https://winstonprivacy.com/Product
https://labs.bishopfox.com/advisories/winston-privacy-version-1.5.4Exploit, Third Party Advisory
https://winstonprivacy.com/Product

Timeline

Published: Oct 28, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-16263?

Winston 1.5.4 devices have a CORS configuration that trusts arbitrary origins. This allows requests to be made and viewed by arbitrary origins.

How severe is CVE-2020-16263?

CVE-2020-16263 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 1.19% probability of exploitation in the next 30 days.

How do I fix CVE-2020-16263?

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-2020-16263?

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

Scan your code now

Source: NVD / NIST