High severity · published May 9, 2026
CVE-2026-8186
Open5GS NF client.c ogs_sbi_client_send_via_scp_or_sepp out-of-bounds
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
A vulnerability was detected in Open5GS up to 2.7.7. This affects the function ogs_sbi_client_send_via_scp_or_sepp in the library lib/sbi/client.c of the component NF. Performing a manipulation results in out-of-bounds read. The attack is possible to be carried out remotely. The patch is named d5bc487fcf9ea87d2b03f2ef95123af344773bfb. It is suggested to install a patch to address this issue.
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 44% 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, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8186
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8186
Product
https://github.com/open5gs/open5gs/
Patch
https://github.com/open5gs/open5gs/commit/d5bc487fcf9ea87d2b03f2ef95123af344773bfb
Exploit
https://github.com/open5gs/open5gs/issues/4491
Issue Tracking
https://github.com/open5gs/open5gs/pull/4496
Third Party Advisory
https://vuldb.com/submit/800024
Third Party Advisory
https://vuldb.com/vuln/362338
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