CVE-2021-33001: xArrow SCADA versions 7.2 and prior is vulnerable to cross-site scripting due to parameter ‘bdate’ of the reso

Q: How do I fix CVE-2021-33001?

xarrow: upgrade to newer than 7.2. Exact commands for each OS are on this page.

Q: Is CVE-2021-33001 being exploited?

CVE-2021-33001 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-33001 affect?

CVE-2021-33001 affects xarrow. Severity is medium (CVSS 6.1). xArrow SCADA versions 7.2 and prior is vulnerable to cross-site scripting due to parameter ‘bdate’ of the resource xhisvalue.htm, which may allow an unauthorized attacker to execute arbitrary code.

Q: How urgent is CVE-2021-33001?

Priority 36/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2021-33001 is a medium-severity flaw (CVSS 6.1) affecting xarrow. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

xArrow SCADA versions 7.2 and prior is vulnerable to cross-site scripting due to parameter ‘bdate’ of the resource xhisvalue.htm, which may allow an unauthorized attacker to execute arbitrary code.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-05-16
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: xarrow

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-05-16 18:15 UTCPublished CVE record published
2026-06-17 03:53 UTCUpdated Record last modified

xarrow xarrow UPGRADE

Affected: <= 7.2

Fixed in: newer than 7.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy xarrow || rpm -q xarrow || xarrow --version

2. UPGRADE to newer than 7.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade xarrow

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade xarrow

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-33001?

xarrow: upgrade to newer than 7.2. Exact commands for each OS are on this page.

Is CVE-2021-33001 being exploited?

CVE-2021-33001 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-33001 affect?

CVE-2021-33001 affects xarrow. Severity is medium (CVSS 6.1). xArrow SCADA versions 7.2 and prior is vulnerable to cross-site scripting due to parameter ‘bdate’ of the resource xhisvalue.htm, which may allow an unauthorized attacker to execute arbitrary code.

How urgent is CVE-2021-33001?

Priority 36/100. No elevated risk signals yet.

Related CVEs

CVE-2021-33025 MEDIUM 5.6 UPGRADE xArrow SCADA versions 7.2 and prior permits unvalidated registry keys to be run with application-level privile
CVE-2021-33021 MEDIUM 6.1 UPGRADE xArrow SCADA versions 7.2 and prior is vulnerable to cross-site scripting due to parameter ‘edate’ of the reso

References

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