High severity · published Sep 8, 2025
CVE-2025-52288
Assertion failure in function ngap_build_downlink_nas_transport in file src/amf/ngap-build.c, the Access and Mobility Management Function (AMF) component, in Open5GS thru 2.7.5…
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
Assertion failure in function ngap_build_downlink_nas_transport in file src/amf/ngap-build.c, the Access and Mobility Management Function (AMF) component, in Open5GS thru 2.7.5 allowing attackers to cause a denial of service or other unspecified impacts via repeated UE connect and disconnect message sequences.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Open5gs · Open5gs
through 2.7.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-52288
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-52288
Third Party Advisory
https://github.com/ZHENGHAOHELLO/BugReport/blob/main/CVE-2025-52288
Patch
https://github.com/matejGradisar/open5gs/commit/5467da9763c300520f56bfbe0a7f5a7f980ec2f6
Exploit
https://github.com/open5gs/open5gs/issues/3862
Exploit
https://github.com/open5gs/open5gs/issues/3862#issue-3006335547
Issue Tracking
https://github.com/open5gs/open5gs/issues/3862#issuecomment-2853458783
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