CVE-2020-9419: Multiple stored cross-site scripting (XSS) vulnerabilities in Arcadyan Wifi routers VRV9506JAC23 allow remote

Routine

MEDIUM 5.4MITIGATE

CVE-2020-9419 is a medium-severity flaw (CVSS 5.4) affecting vrv9506jac23 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple stored cross-site scripting (XSS) vulnerabilities in Arcadyan Wifi routers VRV9506JAC23 allow remote attackers to inject arbitrary web script or HTML via the hostName and domain_name parameters present in the LAN configuration section of the administrative dashboard.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.5% (top 56%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-12-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: arcadyan

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

Am I affected?

Timeline

2022-12-14 01:15 UTCPublished CVE record published
2026-06-17 03:27 UTCUpdated Record last modified

arcadyan vrv9506jac23 firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2020-9419?

vrv9506jac23 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-9419 being exploited?

CVE-2020-9419 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-2020-9419 affect?

CVE-2020-9419 affects vrv9506jac23 firmware. Severity is medium (CVSS 5.4). Multiple stored cross-site scripting (XSS) vulnerabilities in Arcadyan Wifi routers VRV9506JAC23 allow remote attackers to inject arbitrary web script or HTML via the hostName and domain_name parameters present in the LAN configuration sect

How urgent is CVE-2020-9419?

Priority 30/100. No elevated risk signals yet.

Software pages

Wi-Fi vulnerabilities

Related CVEs

CVE-2020-9420 MEDIUM 6.5 MITIGATE The login password of the web administrative dashboard in Arcadyan Wifi routers VRV9506JAC23 is sent in cleart

References

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