CVE-2019-3424: authentication issues vulnerability, which exists in V2.1.14 and below versions of C520V21 smart camera device

Q: How do I fix CVE-2019-3424?

c520v21 firmware: upgrade to newer than 2.1.14. Exact commands for each OS are on this page.

Q: Is CVE-2019-3424 being exploited?

CVE-2019-3424 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-2019-3424 affect?

CVE-2019-3424 affects c520v21 firmware. Severity is high (CVSS 8.2). authentication issues vulnerability, which exists in V2.1.14 and below versions of C520V21 smart camera devices. An attacker can automatically obtain access to web services from the authorized browser of the same computer and perform operat

Q: How urgent is CVE-2019-3424?

Priority 49/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 8.2REMOTEUPGRADE

CVE-2019-3424 is a high-severity flaw (CVSS 8.2) affecting c520v21 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

authentication issues vulnerability, which exists in V2.1.14 and below versions of C520V21 smart camera devices. An attacker can automatically obtain access to web services from the authorized browser of the same computer and perform operations.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Published	2019-11-18
Last modified	2026-06-17

Publisher (CNA): ZTE Corporation · Vendor: ztehome

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

Am I affected?

Timeline

2019-11-18 19:15 UTCPublished CVE record published
2026-06-17 02:35 UTCUpdated Record last modified

ztehome c520v21 firmware UPGRADE

Affected: <= 2.1.14

Fixed in: newer than 2.1.14

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-2019-3424?

c520v21 firmware: upgrade to newer than 2.1.14. Exact commands for each OS are on this page.

Is CVE-2019-3424 being exploited?

CVE-2019-3424 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-2019-3424 affect?

CVE-2019-3424 affects c520v21 firmware. Severity is high (CVSS 8.2). authentication issues vulnerability, which exists in V2.1.14 and below versions of C520V21 smart camera devices. An attacker can automatically obtain access to web services from the authorized browser of the same computer and perform operat

How urgent is CVE-2019-3424?

Priority 49/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2019-3423 MEDIUM 5.3 UPGRADE permission and access control vulnerability, which exists in V2.1.14 and below versions of C520V21 smart camer

References

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