CVE-2018-20051: Mishandling of '>' on the Jooan JA-Q1H Wi-Fi camera with firmware 21.0.0.91 allows remote attackers to cause a

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HIGH 7.5REMOTEMITIGATE

CVE-2018-20051 is a high-severity flaw (CVSS 7.5) affecting jooan ja-q1h wi-fi camera firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Mishandling of '>' on the Jooan JA-Q1H Wi-Fi camera with firmware 21.0.0.91 allows remote attackers to cause a denial of service (crash and reboot) via certain ONVIF methods such as CreateUsers, SetImagingSettings, GetStreamUri, and so on.

Why this priority

High severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-20
Published	2018-12-10
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: qacctv

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

Am I affected?

Timeline

2018-12-10 22:29 UTCPublished CVE record published
2026-06-17 01:52 UTCUpdated Record last modified

qacctv jooan ja-q1h wi-fi camera firmware MITIGATE

Affected: 21.0.0.91

Fixed in: no fixed release known

Safe to downgrade to: a release before 21.0.0.91

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-2018-20051?

jooan ja-q1h wi-fi camera firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-20051 being exploited?

CVE-2018-20051 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-2018-20051 affect?

CVE-2018-20051 affects jooan ja-q1h wi-fi camera firmware. Severity is high (CVSS 7.5). Mishandling of '>' on the Jooan JA-Q1H Wi-Fi camera with firmware 21.0.0.91 allows remote attackers to cause a denial of service (crash and reboot) via certain ONVIF methods such as CreateUsers, SetImagingSettings, GetStreamUri, and so on.

How urgent is CVE-2018-20051?

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

Software pages

Wi-Fi vulnerabilities

Related CVEs

CVE-2018-20050 HIGH 7.5 MITIGATE Mishandling of an empty string on the Jooan JA-Q1H Wi-Fi camera with firmware 21.0.0.91 allows remote attacker

References

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