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CVE-2022-38625: Patlite NH-FB v1.46 and below was discovered to contain insufficient firmware validation during the upgrade fi

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HIGH 8.8UPGRADEUPGRADEUPGRADE

CVE-2022-38625 is a high-severity flaw (CVSS 8.8) affecting nbm-d88n firmware, nhl-3fb1 firmware, nhl-3fv1n firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Patlite NH-FB v1.46 and below was discovered to contain insufficient firmware validation during the upgrade firmware file upload process. This vulnerability allows authenticated attackers to create and upload their own custom-built firmware and inject malicious code. NOTE: the vendor's position is that this is a design choice, not a vulnerability

Why this priority

  • High severity

A fixed release or distro patch exists.

Risk facts

CVSS score8.8 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.6% (top 52%)
CISA exploited listNo
WeaknessCWE-345
Published2022-08-29
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: patlite

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

Am I affected?

Timeline

patlite nbm-d88n firmware UPGRADE
Affected: <= 1.46
Fixed in: newer than 1.46
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.
patlite nhl-3fb1 firmware UPGRADE
Affected: <= 1.46
Fixed in: newer than 1.46
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.
patlite nhl-3fv1n firmware UPGRADE
Affected: <= 1.46
Fixed in: newer than 1.46
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-2022-38625?

nbm-d88n firmware: upgrade to newer than 1.46; nhl-3fb1 firmware: upgrade to newer than 1.46; nhl-3fv1n firmware: upgrade to newer than 1.46. Exact commands for each OS are on this page.

Is CVE-2022-38625 being exploited?

CVE-2022-38625 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-2022-38625 affect?

CVE-2022-38625 affects nbm-d88n firmware, nhl-3fb1 firmware, nhl-3fv1n firmware. Severity is high (CVSS 8.8). Patlite NH-FB v1.46 and below was discovered to contain insufficient firmware validation during the upgrade firmware file upload process. This vulnerability allows authenticated attackers to create and upload their own custom-built firmware

How urgent is CVE-2022-38625?

Priority 43/100. High severity

References

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