How severe is CVE-2024-37877?

CVE-2024-37877 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2024-37877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-37877?

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

Does CVE-2024-37877 have an EU (EUVD) identifier?

Yes. CVE-2024-37877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-36861.

When was CVE-2024-37877 published?

CVE-2024-37877 was published on 2024-06-13 and last updated on 2026-06-17.

CVE-2024-37877

CVE-2024-37877 is a medium-severity vulnerability with a CVSS 3.x base score of 5.5. 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-36861
Weakness: CWE-125
Published: 2024-06-13
Last modified: 2026-06-17

Description

UERANSIM before 3.2.6 allows out-of-bounds read when a RLS packet is sent to gNodeB with malformed PDU length. This occurs in function readOctetString in src/utils/octet_view.cpp and in function DecodeRlsMessage in src/lib/rls/rls_pdu.cpp

Frequently asked questions

What is CVE-2024-37877?: UERANSIM before 3.2.6 allows out-of-bounds read when a RLS packet is sent to gNodeB with malformed PDU length. This occurs in function readOctetString in src/utils/octet_view.cpp and in function DecodeRlsMessage in src/lib/rls/rls_pdu.cpp
How severe is CVE-2024-37877?: CVE-2024-37877 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2024-37877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-37877?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-37877 have an EU (EUVD) identifier?: Yes. CVE-2024-37877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-36861.
When was CVE-2024-37877 published?: CVE-2024-37877 was published on 2024-06-13 and last updated on 2026-06-17.

References

https://github.com/f4rs1ght/vuln-research/tree/main/CVE-2024-37877

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