How severe is CVE-2023-37008?

CVE-2023-37008 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2023-37008 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-37008?

CVE-2023-37008 affects Open5gs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-37008?

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

Does CVE-2023-37008 have an EU (EUVD) identifier?

Yes. CVE-2023-37008 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-40928.

When was CVE-2023-37008 published?

CVE-2023-37008 was published on 2025-01-22 and last updated on 2026-06-17.

CVE-2023-37008

CVE-2023-37008 is a medium-severity vulnerability in Open5gs with a CVSS 3.x base score of 5.3. 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-617.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-40928
Weakness: CWE-617
Affected product: Open5gs
Published: 2025-01-22
Last modified: 2026-06-17

Description

Open5GS MME versions <= 2.6.4 contain a buffer overflow in the ASN.1 deserialization function of the S1AP handler. This buffer overflow causes type confusion in decoded fields, leading to invalid parsing and freeing of memory. An attacker may use this to crash an MME or potentially execute code in certain circumstances.

Frequently asked questions

What is CVE-2023-37008?: Open5GS MME versions <= 2.6.4 contain a buffer overflow in the ASN.1 deserialization function of the S1AP handler. This buffer overflow causes type confusion in decoded fields, leading to invalid parsing and freeing of memory. An attacker may use this to crash an MME or potentially execute code in certain circumstances.
How severe is CVE-2023-37008?: CVE-2023-37008 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2023-37008 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-37008?: CVE-2023-37008 affects Open5gs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-37008?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-37008 have an EU (EUVD) identifier?: Yes. CVE-2023-37008 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-40928.
When was CVE-2023-37008 published?: CVE-2023-37008 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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