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

This week

HIGH 7.5REMOTEMITIGATE

CVE-2018-20050 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 an empty string 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 the ONVIF GetStreamUri method and GetVideoEncoderConfigurationOptions method.

Why this priority

High 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	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
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-2018-20050?

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

Is CVE-2018-20050 being exploited?

CVE-2018-20050 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-2018-20050 affect?

CVE-2018-20050 affects jooan ja-q1h wi-fi camera firmware. Severity is high (CVSS 7.5). Mishandling of an empty string 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 the ONVIF GetStreamUri method and GetVideoEncoderConfigurationOptions method

How urgent is CVE-2018-20050?

Priority 55/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Wi-Fi vulnerabilities

Related CVEs

CVE-2018-20051 HIGH 7.5 MITIGATE Mishandling of '>' on the Jooan JA-Q1H Wi-Fi camera with firmware 21.0.0.91 allows remote attackers to cause a

References

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