🛡️ CVE-2023-37003 — open5gs

🟡 CVSS 5.3 — Medium ⚠️ Exploit Public CWE-617 NVD
5.3
CVSS Score
0 Low4 Medium7 High9 Critical10

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 an E-RAB Setup Response message missing a required MME_UE_S1AP_ID field to repeatedly crash the MME, resulting in denial of service.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability low.

Affected software

CVE-2023-37003 is recorded against 1 package.

  • open5gs (fixed in 2.6.4)

Timeline and source

Published on 22 January 2025 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

cellularsecurity.org

Details

Severity MEDIUM
CVSS Score 5.3
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CWE CWE-617
Public Exploit ⚠️ Yes
Source NVD
Published 2025-01-22
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
open5gs — 2.6.4

References

Exploit, Technical Description, Third Party Advisory https://cellularsecurity.org/ransacked

Similar Threats

Exploit Protection

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