CVE-2024-36491: FutureNet NXR series, VXR series and WXR series provided by Century Systems Co., Ltd

Q: How do I fix CVE-2024-36491?

futurenet nxr-1300 firmware: upgrade to 7.4.10; futurenet nxr-155\/c firmware: mitigate or apply the listed mitigation; futurenet nxr-610x firmware: upgrade to 21.14.11c. Exact commands for each OS are on this page.

Q: Is CVE-2024-36491 being exploited?

CVE-2024-36491 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-2024-36491 affect?

CVE-2024-36491 affects futurenet nxr-1300 firmware, futurenet nxr-155\/c firmware, futurenet nxr-610x firmware. Severity is critical (CVSS 9.8). FutureNet NXR series, VXR series and WXR series provided by Century Systems Co., Ltd. allow an administrative user to execute an arbitrary OS command, obtain and/or alter sensitive information, and cause a denial-of-service (DoS) condition.

Q: How urgent is CVE-2024-36491?

Priority 52/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADEMITIGATEUPGRADE

CVE-2024-36491 is a critical-severity flaw (CVSS 9.8) affecting futurenet nxr-1300 firmware, futurenet nxr-155\/c firmware, futurenet nxr-610x firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FutureNet NXR series, VXR series and WXR series provided by Century Systems Co., Ltd. allow an administrative user to execute an arbitrary OS command, obtain and/or alter sensitive information, and cause a denial-of-service (DoS) condition.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 49%)
CISA exploited list	No
Weakness	CWE-78
Published	2024-07-17
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: centurysys

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

Am I affected?

Timeline

2024-07-17 09:15 UTCPublished CVE record published
2026-06-17 07:36 UTCUpdated Record last modified

centurysys futurenet nxr-1300 firmware UPGRADE

Affected: < 7.4.10

Fixed in: 7.4.10

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.

centurysys futurenet nxr-155\/c 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.

centurysys futurenet nxr-610x firmware UPGRADE

Affected: < 21.14.11c

Fixed in: 21.14.11c

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.

centurysys futurenet nxr-g050 firmware UPGRADE

Affected: < 21.12.10

Fixed in: 21.12.10

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.

centurysys futurenet nxr-g060 firmware UPGRADE

Affected: < 21.15.6

Fixed in: 21.15.6

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.

centurysys futurenet nxr-g100 firmware UPGRADE

Affected: < 6.23.11

Fixed in: 6.23.11

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-2024-36491?

futurenet nxr-1300 firmware: upgrade to 7.4.10; futurenet nxr-155\/c firmware: mitigate or apply the listed mitigation; futurenet nxr-610x firmware: upgrade to 21.14.11c. Exact commands for each OS are on this page.

Is CVE-2024-36491 being exploited?

CVE-2024-36491 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-2024-36491 affect?

CVE-2024-36491 affects futurenet nxr-1300 firmware, futurenet nxr-155\/c firmware, futurenet nxr-610x firmware. Severity is critical (CVSS 9.8). FutureNet NXR series, VXR series and WXR series provided by Century Systems Co., Ltd. allow an administrative user to execute an arbitrary OS command, obtain and/or alter sensitive information, and cause a denial-of-service (DoS) condition.

How urgent is CVE-2024-36491?

Priority 52/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-36475 HIGH 8.8 UPGRADE MITIGATE FutureNet NXR series, VXR series and WXR series provided by Century Systems Co., Ltd
CVE-2024-31070 CRITICAL 9.1 UPGRADE MITIGATE Initialization of a resource with an insecure default vulnerability in FutureNet NXR series, VXR series and WX

References

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