How severe is CVE-2023-50927?

CVE-2023-50927 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-50927 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-50927?

CVE-2023-50927 affects Contiki-ng. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-50927?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-50927 have an EU (EUVD) identifier?

Yes. CVE-2023-50927 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55658.

When was CVE-2023-50927 published?

CVE-2023-50927 was published on 2024-02-14 and last updated on 2026-06-17.

CVE-2023-50927

CVE-2023-50927 is a high-severity vulnerability in Contiki-ng with a CVSS 3.x base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 8.6)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-55658
Weakness: CWE-125
Affected product: Contiki-ng
Published: 2024-02-14
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-50927?: 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.
How severe is CVE-2023-50927?: CVE-2023-50927 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-50927 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-50927?: CVE-2023-50927 affects Contiki-ng. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-50927?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-50927 have an EU (EUVD) identifier?: Yes. CVE-2023-50927 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55658.
When was CVE-2023-50927 published?: CVE-2023-50927 was published on 2024-02-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*

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