CVE-2020-11623: An issue was discovered in AvertX Auto focus Night Vision HD Indoor/Outdoor IP Dome Camera HD838 and Night Vis

Routine

MEDIUM 6.8MITIGATEMITIGATE

CVE-2020-11623 is a medium-severity flaw (CVSS 6.8) affecting hd838 firmware, hd438 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in AvertX Auto focus Night Vision HD Indoor/Outdoor IP Dome Camera HD838 and Night Vision HD Indoor/Outdoor Mini IP Bullet Camera HD438. An attacker with physical access to the UART interface could access additional diagnostic and configuration functionalities as well as the camera's bootloader. Successful exploitation could compromise confidentiality, integrity, and availability of the affected system. It could even rende

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.8 (Medium)
Attack vector	Physical
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 62%)
CISA exploited list	No
Published	2020-07-23
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: avertx

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

Am I affected?

Timeline

2020-07-23 20:15 UTCPublished CVE record published
2026-06-17 02:50 UTCUpdated Record last modified

avertx hd838 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.

avertx hd438 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-2020-11623?

hd838 firmware: mitigate or apply the listed mitigation; hd438 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-11623 being exploited?

CVE-2020-11623 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-2020-11623 affect?

CVE-2020-11623 affects hd838 firmware, hd438 firmware. Severity is medium (CVSS 6.8). An issue was discovered in AvertX Auto focus Night Vision HD Indoor/Outdoor IP Dome Camera HD838 and Night Vision HD Indoor/Outdoor Mini IP Bullet Camera HD438. An attacker with physical access to the UART interface could access additional

How urgent is CVE-2020-11623?

Priority 38/100. Public exploit reference

Related CVEs

CVE-2020-11625 MEDIUM 5.3 MITIGATE MITIGATE An issue was discovered in AvertX Auto focus Night Vision HD Indoor/Outdoor IP Dome Camera HD838 and Night Vis
CVE-2020-11624 CRITICAL 9.8 MITIGATE MITIGATE An issue was discovered in AvertX Auto focus Night Vision HD Indoor/Outdoor IP Dome Camera HD838 and Night Vis

References

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