CVE-2026-8186

Name: CVE-2026-8186
Creator: NVD / NIST
Published: 2026-05-09T12:16:08.76+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.9/10EPSS 0.52%

Last modified Jun 17, 2026

CVE-2026-8186 is a medium-severity vulnerability rated 6.9/10 on the CVSS scale. 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. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0

6.9/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.52%

40.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Open5gs	Open5gs	<= 2.7.7

References

https://github.com/open5gs/open5gs/Product
https://github.com/open5gs/open5gs/commit/d5bc487fcf9ea87d2b03f2ef95123af344773bfbPatch
https://github.com/open5gs/open5gs/issues/4491Exploit, Issue Tracking
https://github.com/open5gs/open5gs/pull/4496Issue Tracking, Patch
https://vuldb.com/submit/800024Third Party Advisory, VDB Entry
https://vuldb.com/vuln/362338Third Party Advisory, VDB Entry
https://vuldb.com/vuln/362338/ctiPermissions Required, VDB Entry
https://github.com/open5gs/open5gs/issues/4491Exploit, Issue Tracking

Timeline

Published: May 9, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-8186?

How severe is CVE-2026-8186?

CVE-2026-8186 has a CVSS score of 6.9/10 (MEDIUM severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2026-8186?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-8186?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST