Access and Mobility Management Function Denial of Service Vulnerability in Open5GS
CVE-2025-52288

7.5HIGH

Key Information:

Vendor

Open5GS

Status
Open5GS
Vendor
CVE Published:
8 September 2025

What is CVE-2025-52288?

The Access and Mobility Management Function (AMF) in Open5GS versions up to 2.7.5 is vulnerable due to an assertion failure in the ngap_build_downlink_nas_transport function. This vulnerability allows attackers to initiate a denial of service (DoS) by sending repeated connect and disconnect messages from User Equipment (UE), potentially disrupting service for legitimate users. Admins should apply relevant patches and monitor for unusual behavior to protect their networks.

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References

https://github.com/open5gs/open5gs/issues/3862
https://github.com/open5gs/open5gs/issues/3862#issuecomme...
https://github.com/open5gs/open5gs/issues/3862#issue-3006...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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