CVE-2023-37023
Open5GS MME versions <= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport` packet...
Open5GS MME versions <= 2.6.4 contain a reachable assertion in the Uplink NAS Transport packet handler. A packet missing its MME_UE_S1AP_ID field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Open5GS MME versions <= 2.6.4 contain a reachable assertion in the Uplink NAS Transport packet handler. A packet missing its MME_UE_S1AP_ID field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.
- Record
CVE-2023-37023- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H - Weakness
- CWE-617
- Updated
- 2026-11-02
EUVDEUVD-2023-40943
Open5GS MME versions <= 2.6.4 contain a reachable assertion in the Uplink NAS Transport packet handler. A packet missing its MME_UE_S1AP_ID field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.
- Record
EUVD-2023-40943- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x7pq-2j3f-24rv
Open5GS MME versions <= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport` packet...
Open5GS MME versions <= 2.6.4 contain a reachable assertion in the Uplink NAS Transport packet handler. A packet missing its MME_UE_S1AP_ID field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.
- Record
GHSA-x7pq-2j3f-24rv- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H - Weakness
- CWE-617
- Updated
- 2026-11-02
NVD
Open5GS MME versions <= 2.6.4 contain a reachable assertion in the Uplink NAS Transport packet handler. A packet missing its MME_UE_S1AP_ID field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.
- Record
CVE-2023-37023- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H - Weakness
- CWE-617
- Updated
- 2026-11-02
OSV
Open5GS MME versions <= 2.6.4 contain a reachable assertion in the Uplink NAS Transport packet handler. A packet missing its MME_UE_S1AP_ID field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.
- Record
CVE-2023-37023- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-37023 is a high vulnerability (CVSS 8.6) in Open5gs, published January 22, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.81%, the 57th percentile. No source names a fixed version.