CVE-2018-5560: A reliance on a static, hard-coded credential in the design of the cloud-based storage system of Practecol's G

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CRITICAL 10.0REMOTEMITIGATE

CVE-2018-5560 is a critical-severity flaw (CVSS 10.0) affecting gz521w firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A reliance on a static, hard-coded credential in the design of the cloud-based storage system of Practecol's Guardzilla All-In-One Video Security System allows an attacker to view the private data of all users of the Guardzilla device.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	10.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-798
Published	2019-01-31
Last modified	2026-06-17

Publisher (CNA): Rapid7, Inc. · Vendor: guardzilla

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

Am I affected?

Timeline

2019-01-31 21:29 UTCPublished CVE record published
2026-06-17 02:00 UTCUpdated Record last modified

guardzilla gz521w 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-2018-5560?

gz521w firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-5560 being exploited?

CVE-2018-5560 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-2018-5560 affect?

CVE-2018-5560 affects gz521w firmware. Severity is critical (CVSS 10.0). A reliance on a static, hard-coded credential in the design of the cloud-based storage system of Practecol's Guardzilla All-In-One Video Security System allows an attacker to view the private data of all users of the Guardzilla device.

How urgent is CVE-2018-5560?

Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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