How severe is CVE-2023-24826?

CVE-2023-24826 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-24826 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-24826?

CVE-2023-24826 affects Riot-os Riot. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-24826?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-24826 published?

CVE-2023-24826 was published on 2023-05-30 and last updated on 2026-06-17.

CVE-2023-24826

CVE-2023-24826 is a medium-severity vulnerability in Riot-os Riot with a CVSS 3.x base score of 5.9. 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-824.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-824
Affected product: Riot-os Riot
Published: 2023-05-30
Last modified: 2026-06-17

Description

RIOT-OS, an operating system for Internet of Things (IoT) devices, contains a network stack with the ability to process 6LoWPAN frames. Prior to version 2023.04, an attacker can send crafted frames to the device to trigger the usage of an uninitialized object leading to denial of service. This issue is fixed in version 2023.04. As a workaround, disable fragment forwarding or SFR.

Frequently asked questions

What is CVE-2023-24826?: RIOT-OS, an operating system for Internet of Things (IoT) devices, contains a network stack with the ability to process 6LoWPAN frames. Prior to version 2023.04, an attacker can send crafted frames to the device to trigger the usage of an uninitialized object leading to denial of service. This issue is fixed in version 2023.04. As a workaround, disable fragment forwarding or SFR.
How severe is CVE-2023-24826?: CVE-2023-24826 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-24826 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-24826?: CVE-2023-24826 affects Riot-os Riot. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-24826?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-24826 published?: CVE-2023-24826 was published on 2023-05-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:riot-os:riot:*:*:*:*:*:*:*:*

More vulnerabilities in Riot-os Riot

CVE-2026-22214 — Critical (CVSS 9.8): RIOT OS versions up to and including 2026.01-devel-317 contain a stack-based buffer overflow vulnerability in the ethos…
CVE-2026-22213 — Critical (CVSS 9.8): RIOT OS versions up to and including 2026.01-devel-317 contain a stack-based buffer overflow vulnerability in the…
CVE-2025-66647 — Critical (CVSS 9.8): RIOT is an open-source microcontroller operating system, designed to match the requirements of Internet of Things (IoT)…
CVE-2025-53888 — Critical (CVSS 9.8): RIOT-OS, an operating system that supports Internet of Things devices, has an ineffective size check implemented with…
CVE-2024-32017 — Critical (CVSS 9.8): RIOT is a real-time multi-threading operating system that supports a range of devices that are typically 8-bit, 16-bit…
CVE-2023-33975 — Critical (CVSS 9.8): RIOT-OS, an operating system for Internet of Things (IoT) devices, contains a network stack with the ability to process…

All CVEs affecting Riot-os Riot →

Other CWE-824 vulnerabilities

CVE-2009-0846 — Critical (CVSS 10.0): The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT…
CVE-2007-2442 — Critical (CVSS 10.0): The gssrpc__svcauth_gssapi function in the RPC library in MIT Kerberos 5 (krb5) 1.6.1 and earlier might allow remote…
CVE-2026-2805 — Critical (CVSS 9.8): Invalid pointer in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
CVE-2026-2785 — Critical (CVSS 9.8): Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8,…
CVE-2022-46280 — Critical (CVSS 9.8): A use of uninitialized pointer vulnerability exists in the PQS format pFormat functionality of Open Babel 3.1.1 and…
CVE-2022-44451 — Critical (CVSS 9.8): A use of uninitialized pointer vulnerability exists in the MSI format atom functionality of Open Babel 3.1.1 and master…

Browse all CWE-824 vulnerabilities →