CVE-2024-50921: Insecure permissions in Silicon Labs (SiLabs) Z-Wave Series 700 and 800 v7.21.1 allow attackers to cause a Den

Q: How do I fix CVE-2024-50921?

z-wave software development kit: upgrade to newer than 7.21.1. Exact commands for each OS are on this page.

Q: Is CVE-2024-50921 being exploited?

CVE-2024-50921 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-2024-50921 affect?

CVE-2024-50921 affects z-wave software development kit. Severity is medium (CVSS 6.5). Insecure permissions in Silicon Labs (SiLabs) Z-Wave Series 700 and 800 v7.21.1 allow attackers to cause a Denial of Service (DoS) via repeatedly sending crafted packets to the controller.

Q: How urgent is CVE-2024-50921?

Priority 36/100. Public exploit reference

Routine

MEDIUM 6.5UPGRADE

CVE-2024-50921 is a medium-severity flaw (CVSS 6.5) affecting z-wave software development kit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Insecure permissions in Silicon Labs (SiLabs) Z-Wave Series 700 and 800 v7.21.1 allow attackers to cause a Denial of Service (DoS) via repeatedly sending crafted packets to the controller.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-281
Published	2024-12-10
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: silabs

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

Am I affected?

Timeline

2024-12-10 19:15 UTCPublished CVE record published
2026-06-17 08:05 UTCUpdated Record last modified

silabs z-wave software development kit UPGRADE

Affected: <= 7.21.1

Fixed in: newer than 7.21.1

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-2024-50921?

z-wave software development kit: upgrade to newer than 7.21.1. Exact commands for each OS are on this page.

Is CVE-2024-50921 being exploited?

CVE-2024-50921 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-2024-50921 affect?

CVE-2024-50921 affects z-wave software development kit. Severity is medium (CVSS 6.5). Insecure permissions in Silicon Labs (SiLabs) Z-Wave Series 700 and 800 v7.21.1 allow attackers to cause a Denial of Service (DoS) via repeatedly sending crafted packets to the controller.

How urgent is CVE-2024-50921?

Priority 36/100. Public exploit reference

Related CVEs

CVE-2024-50931 MEDIUM 4.6 DOWNGRADE Silicon Labs Z-Wave Series 500 v6.84.0 was discovered to contain insecure permissions.
CVE-2024-50930 HIGH 8.8 DOWNGRADE An issue in Silicon Labs Z-Wave Series 500 v6.84.0 allows attackers to execute arbitrary code.
CVE-2024-50929 MEDIUM 6.2 UPGRADE Insecure permissions in Silicon Labs (SiLabs) Z-Wave Series 700 and 800 v7.21.1 allow attackers to arbitrarily
CVE-2024-50928 MEDIUM 6.5 UPGRADE Insecure permissions in Silicon Labs (SiLabs) Z-Wave Series 700 and 800 v7.21.1 allow attackers to change the
CVE-2024-50924 MEDIUM 6.5 UPGRADE Insecure permissions in Silicon Labs (SiLabs) Z-Wave Series 700 and 800 v7.21.1 allow attackers to cause disru

References

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