Medium severity · published Jan 22, 2025
CVE-2023-37009
Open5GS MME versions <= 2.6.4 contain an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface
6.3
CVSS
0.5%
EPSS
No
On KEV
Description
Open5GS MME versions <= 2.6.4 contain an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send a `Handover Notification` message missing a required `MME_UE_S1AP_ID` field to repeatedly crash the MME, resulting in denial of service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Open5gs · Open5gs
through 2.6.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-37009
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-37009
Exploit
https://cellularsecurity.org/ransacked
More from Open5gs
9.8
CVE-2026-2522
Open5GS MME esm-build.c memory corruption
9.8
CVE-2026-2521
Open5GS SGW-C sgwc_s5c_handle_create_session_response memory corruption
9.8
CVE-2024-40130
open5gs v2.6.4 is vulnerable to Buffer Overflow
9.8
CVE-2024-40129
Open5GS v2.6.4 is vulnerable to Buffer Overflow
9.8
CVE-2021-28122
A request-validation issue was discovered in Open5GS 2.1.3 through 2.2.x before 2.2.1