How severe is CVE-2023-37022?

CVE-2023-37022 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-2023-37022 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-37022?

CVE-2023-37022 affects Open5gs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-37022?

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-2023-37022 have an EU (EUVD) identifier?

Yes. CVE-2023-37022 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-40942.

When was CVE-2023-37022 published?

CVE-2023-37022 was published on 2025-01-22 and last updated on 2026-06-17.

CVE-2023-37022

CVE-2023-37022 is a high-severity vulnerability in Open5gs 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-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-40942
Weakness: CWE-400
Affected product: Open5gs
Published: 2025-01-22
Last modified: 2026-06-17

Description

Open5GS MME versions <= 2.6.4 contain a reachable assertion in the `UE Context Release Request` packet handler. A packet containing an invalid `MME_UE_S1AP_ID` field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.

Frequently asked questions

What is CVE-2023-37022?: Open5GS MME versions <= 2.6.4 contain a reachable assertion in the `UE Context Release Request` packet handler. A packet containing an invalid `MME_UE_S1AP_ID` field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.
How severe is CVE-2023-37022?: CVE-2023-37022 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-2023-37022 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-37022?: CVE-2023-37022 affects Open5gs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-37022?: 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-2023-37022 have an EU (EUVD) identifier?: Yes. CVE-2023-37022 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-40942.
When was CVE-2023-37022 published?: CVE-2023-37022 was published on 2025-01-22 and last updated on 2026-06-17.

References

https://cellularsecurity.org/ransacked

Affected products (1)

cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*

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