CVE-2020-16259

Name: CVE-2020-16259
Creator: NVD / NIST
Published: 2020-10-28T18:15:13.007+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.73%

Last modified Jun 17, 2026

CVE-2020-16259 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Winston 1.5.4 devices have an SSH user account with access from bastion hosts. This is undocumented in device documents and is not announced to the user.. EPSS estimates a 1.73% chance of exploitation in the next 30 days.

Description

Winston 1.5.4 devices have an SSH user account with access from bastion hosts. This is undocumented in device documents and is not announced to the user.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.73%

74.7th percentile

Probability of exploitation in the next 30 days. Learn more

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-2020-16259?

Winston 1.5.4 devices have an SSH user account with access from bastion hosts. This is undocumented in device documents and is not announced to the user.

How severe is CVE-2020-16259?

CVE-2020-16259 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.73% probability of exploitation in the next 30 days.

How do I fix CVE-2020-16259?

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-2020-16259?

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

Scan your code now

Source: NVD / NIST