Medium severity · published Aug 12, 2026
CVE-2025-15684
Open5GS CER init.c diam_log_func assertion
5.3
CVSS
0.7%
EPSS
No
On KEV
Description
A vulnerability was detected in Open5GS up to 2.7.6. Affected is the function diam_log_func of the file lib/diameter/common/init.c of the component CER Handler. The manipulation results in reachable assertion. The attack can be executed remotely. The exploit is now public and may be used. Upgrading to version 2.7.7 is able to address this issue. The patch is identified as c1a803516a3c0485696cb9bcca7a80ad857c7383. It is advisable to upgrade the affected component.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% 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; +1 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-15684
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-15684
github.com
https://github.com/open5gs/open5gs/
github.com
https://github.com/open5gs/open5gs/commit/c1a803516a3c0485696cb9bcca7a80ad857c7383
github.com
https://github.com/open5gs/open5gs/issues/4155
github.com
https://github.com/open5gs/open5gs/releases/tag/v2.7.7
vuldb.com
https://vuldb.com/cve/CVE-2025-15684
vuldb.com
https://vuldb.com/submit/867102
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