How severe is CVE-2024-52802?

CVE-2024-52802 has a CVSS 3.x base score of 7.5, 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-2024-52802 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-52802?

CVE-2024-52802 affects Riot-os Riot. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-52802?

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-2024-52802 have an EU (EUVD) identifier?

Yes. CVE-2024-52802 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46055.

When was CVE-2024-52802 published?

CVE-2024-52802 was published on 2024-11-22 and last updated on 2026-06-17.

CVE-2024-52802

CVE-2024-52802 is a high-severity vulnerability in Riot-os Riot with a CVSS 3.x base score of 7.5. 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-46055
Weakness: CWE-20
Affected product: Riot-os Riot
Published: 2024-11-22
Last modified: 2026-06-17

Description

RIOT is an operating system for internet of things (IoT) devices. In version 2024.04 and prior, the function `_parse_advertise`, located in `/sys/net/application_layer/dhcpv6/client.c`, has no minimum header length check for `dhcpv6_opt_t` after processing `dhcpv6_msg_t`. This omission could lead to an out-of-bound read, causing system inconsistency. Additionally, the same lack of a header length check is present in the function `_preparse_advertise`, which is called by `_parse_advertise` before handling the request. As of time of publication, no known patched version exists.

Frequently asked questions

What is CVE-2024-52802?: RIOT is an operating system for internet of things (IoT) devices. In version 2024.04 and prior, the function `_parse_advertise`, located in `/sys/net/application_layer/dhcpv6/client.c`, has no minimum header length check for `dhcpv6_opt_t` after processing `dhcpv6_msg_t`. This omission could lead to an out-of-bound read, causing system inconsistency. Additionally, the same lack of a header length check is present in the function `_preparse_advertise`, which is called by `_parse_advertise` before handling the request. As of time of publication, no known patched version exists.
How severe is CVE-2024-52802?: CVE-2024-52802 has a CVSS 3.x base score of 7.5, 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-2024-52802 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-52802?: CVE-2024-52802 affects Riot-os Riot. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-52802?: 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-2024-52802 have an EU (EUVD) identifier?: Yes. CVE-2024-52802 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46055.
When was CVE-2024-52802 published?: CVE-2024-52802 was published on 2024-11-22 and last updated on 2026-06-17.

References

https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-xgv3-pcq6-qmrg

Affected products (1)

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

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