CVE-2023-6874

Name: CVE-2023-6874
Creator: NVD / NIST
Published: 2024-02-05T18:15:51.877+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.35%

Last modified Jun 17, 2026

CVE-2023-6874 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Prior to v7.4.0, Ember ZNet is vulnerable to a denial of service attack through manipulation of the NWK sequence number. EPSS estimates a 0.35% chance of exploitation in the next 30 days.

Description

Prior to v7.4.0, Ember ZNet is vulnerable to a denial of service attack through manipulation of the NWK sequence number

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.35%

27.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Silabs	Gecko Software Development Kit	< 4.4.0

References

https://community.silabs.com/069Vm000000WXaOIAWPermissions Required
https://github.com/SiliconLabs/gecko_sdkProduct
https://community.silabs.com/069Vm000000WXaOIAWPermissions Required
https://github.com/SiliconLabs/gecko_sdkProduct

Timeline

Published: Feb 5, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-6874?

Prior to v7.4.0, Ember ZNet is vulnerable to a denial of service attack through manipulation of the NWK sequence number

How severe is CVE-2023-6874?

CVE-2023-6874 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6874?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-6874?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST