CVE-2024-24430
Open5Gs ≤ 2.6.4
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2024-24430 is a high-severity Reachable Assertion (CWE-617) vulnerability in Open5Gs Open5Gs. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked in the top 45% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-8 (Security and Privacy Engineering Principles) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2024-24430 is a reachable assertion vulnerability in the mme_ue_find_by_imsi function of Open5GS versions up to and including 2.6.4. This flaw affects the open-source 5G core network implementation, enabling attackers to trigger a Denial of Service (DoS) condition through a specially crafted NAS (Non-Access Stratum) packet. The issue is classified under CWE-617 and was published on 2025-01-22 with a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H), highlighting its potential for high-impact disruption without compromising confidentiality or integrity.
Remote attackers with network access to the vulnerable Open5GS deployment can exploit this vulnerability by sending a malicious NAS packet, which triggers the assertion failure in the MME (Mobility Management Entity) user equipment lookup function by IMSI. No authentication or privileges are required, and the attack requires low complexity with no user interaction. Successful exploitation results in a DoS, such as application crashes or service unavailability, potentially disrupting core network functions for affected users or the entire system.
Mitigation details and patches are referenced in advisories available at https://cellularsecurity.org/ransacked. Security practitioners should consult these resources for upgrade instructions to remediate the vulnerability in Open5GS deployments.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-21849
Vulnerability Data
A reachable assertion in the mme_ue_find_by_imsi function of Open5GS <= 2.6.4 allows attackers to cause a Denial of Service (DoS) via a crafted NAS packet.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Developer testing and evaluation finds reachable assertions during development.
Security engineering principles discourage use of assertions for handling untrusted input.
Validating untrusted inputs structurally prevents attacker data from reaching and triggering assertions.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Runtime monitoring of software can detect assertion-triggered crashes as adverse events.
Vulnerability identification processes can discover and record reachable-assertion flaws before deployment.
Secure SDLC practices directly prevent unsafe assertions from being coded in reachable paths.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.