What is CVE-2020-16261?

CVE-2020-16261 is a medium-severity vulnerability in Winstonprivacy Winston, classified under Improper Access Control. CVSS score: 6.8/10. Published 2020-10-28.

How severe is CVE-2020-16261?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Vulnerability in Winstonprivacy Winston

CVE-2020-16261

Winston 1.5.4 devices allow a U-Boot interrupt, resulting in local root access.

Published 2020-10-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (38.7th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Winstonprivacy Winston
Winstonprivacy Winston Firmware — versions 1.5.4

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

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

Frequently asked questions

What is CVE-2020-16261?: CVE-2020-16261 is a medium-severity vulnerability in Winstonprivacy Winston, classified under Improper Access Control. CVSS score: 6.8/10. Published 2020-10-28.
How severe is CVE-2020-16261?: Medium severity. CVSS v3 base score is 6.8 out of 10.