What is CVE-2021-33025?

CVE-2021-33025 is a medium-severity vulnerability in Xarrow, classified under Cross-site Scripting. CVSS score: 5.6/10. Published 2022-05-16.

How severe is CVE-2021-33025?

Medium severity. CVSS v3 base score is 5.6 out of 10.

XSS in Xarrow

CVE-2021-33025

xArrow SCADA versions 7.2 and prior permits unvalidated registry keys to be run with application-level privileges.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-05-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:N.

EPSS exploit prediction

EPSS: 0.003 (16.2th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Xarrow
Xarrow Scada — versions unspecified

Weakness classification (CWE)

References

www.cisa.gov/uscert/ics/advisories/icsa-21-229-03 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2021-33025?: CVE-2021-33025 is a medium-severity vulnerability in Xarrow, classified under Cross-site Scripting. CVSS score: 5.6/10. Published 2022-05-16.
How severe is CVE-2021-33025?: Medium severity. CVSS v3 base score is 5.6 out of 10.