CVE-2024-56921

HIGH
2025-02-03 [email protected]
7.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

4
Analysis Generated
Mar 28, 2026 - 18:07 vuln.today
Patch Released
Mar 28, 2026 - 18:07 nvd
Patch available
PoC Detected
Apr 22, 2025 - 14:58 vuln.today
Public exploit code
CVE Published
Feb 03, 2025 - 20:15 nvd
HIGH 7.5

Tags

Denial Of Service Open5gs

Description

An issue was discovered in Open5gs v2.7.2. InitialUEMessage, Registration request sent at a specific time can crash AMF due to incorrect error handling of gmm_state_exception() function upon receipt of the Nausf_UEAuthentication_Authenticate response.

Analysis

An issue was discovered in Open5gs v2.7.2. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical Context

This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. An issue was discovered in Open5gs v2.7.2. InitialUEMessage, Registration request sent at a specific time can crash AMF due to incorrect error handling of gmm_state_exception() function upon receipt of the Nausf_UEAuthentication_Authenticate response. Affected products include: Open5Gs.

Affected Products

Open5Gs.

Remediation

A vendor patch is available. Apply the latest security update as soon as possible. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.

Priority Score

58
Low Medium High Critical
KEV: 0
EPSS: +0.9
CVSS: +38
POC: +20

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CVE-2024-56921 vulnerability details – vuln.today
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