Medium severity · published May 4, 2026
CVE-2026-7780
Open5GS smf-registrations Endpoint udm-sm.c udm_state_operational denial of service
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
A weakness has been identified in Open5GS up to 2.7.7. Affected by this vulnerability is the function udm_state_operational of the file /src/udm/udm-sm.c of the component smf-registrations Endpoint. Executing a manipulation can lead to denial of service. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Open5GS · Open5gs
2.7.0; 2.7.1; 2.7.2; 2.7.3; 2.7.4; 2.7.5; +2 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7780
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7780
github.com
https://github.com/open5gs/open5gs/
github.com
https://github.com/open5gs/open5gs/issues/4419
vuldb.com
https://vuldb.com/submit/806250
vuldb.com
https://vuldb.com/vuln/360977
vuldb.com
https://vuldb.com/vuln/360977/cti
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