What is CVE-2021-32535?

CVE-2021-32535 is a critical-severity vulnerability in Qsan Sanos, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2021-07-07.

How severe is CVE-2021-32535?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Qsan Sanos

CVE-2021-32535

The vulnerability of hard-coded default credentials in QSAN SANOS allows unauthenticated remote attackers to obtain administrator’s permission and execute arbitrary functions. The referred vulnerability has been solved with the updated version of QSAN SANOS v2.1.0.

Published 2021-07-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (71.5th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Qsan Sanos — versions unspecified

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

www.twcert.org.tw/tw/cp-132-4892-768d9-1.html (Third Party Advisory)

Frequently asked questions

What is CVE-2021-32535?: CVE-2021-32535 is a critical-severity vulnerability in Qsan Sanos, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2021-07-07.
How severe is CVE-2021-32535?: Critical severity. CVSS v3 base score is 9.8 out of 10.