CVE-2024-22771: Improper Input Validation in Hitron Systems DVR LGUVR-4H 1.02~4.02 allows an attacker to cause network attack

Q: How do I fix CVE-2024-22771?

lguvr-4h firmware: upgrade to 4.03. Exact commands for each OS are on this page.

Q: Is CVE-2024-22771 being exploited?

CVE-2024-22771 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-22771 affect?

CVE-2024-22771 affects lguvr-4h firmware. Severity is high (CVSS 7.4). Improper Input Validation in Hitron Systems DVR LGUVR-4H 1.02~4.02 allows an attacker to cause network attack in case of using defalut admin ID/PW.

Routine

HIGH 7.4UPGRADE

CVE-2024-22771 is a high-severity flaw (CVSS 7.4) affecting lguvr-4h firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Input Validation in Hitron Systems DVR LGUVR-4H 1.02~4.02 allows an attacker to cause network attack in case of using defalut admin ID/PW.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.4 (High)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-20, CWE-798
Published	2024-01-23
Last modified	2026-06-17

Publisher (CNA): KrCERT/CC · Vendor: hitron

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

Am I affected?

Timeline

2024-01-23 05:15 UTCPublished CVE record published
2026-06-17 07:11 UTCUpdated Record last modified

hitron lguvr-4h firmware UPGRADE

Affected: >= 1.03 and < 4.03

Fixed in: 4.03

Safe to downgrade to: a release before 1.03

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-2024-22771?

lguvr-4h firmware: upgrade to 4.03. Exact commands for each OS are on this page.

Is CVE-2024-22771 being exploited?

CVE-2024-22771 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-2024-22771 affect?

CVE-2024-22771 affects lguvr-4h firmware. Severity is high (CVSS 7.4). Improper Input Validation in Hitron Systems DVR LGUVR-4H 1.02~4.02 allows an attacker to cause network attack in case of using defalut admin ID/PW.

How urgent is CVE-2024-22771?

Priority 37/100. High severity

References

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