CVE-2023-50927

Name: CVE-2023-50927
Creator: NVD / NIST
Published: 2024-02-14T20:15:45.367+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.51%

Last modified Jun 17, 2026

CVE-2023-50927 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An attacker can trigger out-of-bounds reads in the RPL-Lite implementation of the RPL protocol in the Contiki-NG operating system. EPSS estimates a 0.51% chance of exploitation in the next 30 days.

Description

Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An attacker can trigger out-of-bounds reads in the RPL-Lite implementation of the RPL protocol in the Contiki-NG operating system. This vulnerability is caused by insufficient control of the lengths for DIO and DAO messages, in particular when they contain RPL sub-option headers. The problem has been patched in Contiki-NG 4.9. Users are advised to upgrade. Users unable to upgrade should manually apply the code changes in PR #2484.

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

0.51%

39.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Contiki-Ng	Contiki-Ng	< 4.9

References

https://github.com/contiki-ng/contiki-ng/pull/2484Issue Tracking
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-9423-rgj4-wjfwVendor Advisory
https://github.com/contiki-ng/contiki-ng/pull/2484Issue Tracking
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-9423-rgj4-wjfwVendor Advisory

Timeline

Published: Feb 14, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-50927?

How severe is CVE-2023-50927?

CVE-2023-50927 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.

How do I fix CVE-2023-50927?

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-2023-50927?

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

Scan your code now

Source: NVD / NIST