CVE-2026-8186
Open5GS NF client.c ogs_sbi_client_send_via_scp_or_sepp out-of-bounds
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.
INFO
Published Date :
May 9, 2026, 12:16 p.m.
Last Modified :
May 13, 2026, 4:09 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Install the patch d5bc487fcf9ea87d2b03f2ef95123af344773bfb.
- Update Open5GS to a patched version.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-8186.
| URL | Resource |
|---|---|
| https://github.com/open5gs/open5gs/ | Product |
| https://github.com/open5gs/open5gs/commit/d5bc487fcf9ea87d2b03f2ef95123af344773bfb | Patch |
| https://github.com/open5gs/open5gs/issues/4491 | Exploit Issue Tracking |
| https://github.com/open5gs/open5gs/pull/4496 | Issue Tracking Patch |
| https://vuldb.com/submit/800024 | Third Party Advisory VDB Entry |
| https://vuldb.com/vuln/362338 | Third Party Advisory VDB Entry |
| https://vuldb.com/vuln/362338/cti | Permissions Required VDB Entry |
| https://github.com/open5gs/open5gs/issues/4491 | Exploit Issue Tracking |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-8186 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-8186
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-8186 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-8186 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 13, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CPE Configuration OR *cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:* versions up to (including) 2.7.7 Added Reference Type VulDB: https://github.com/open5gs/open5gs/ Types: Product Added Reference Type VulDB: https://github.com/open5gs/open5gs/commit/d5bc487fcf9ea87d2b03f2ef95123af344773bfb Types: Patch Added Reference Type CISA-ADP: https://github.com/open5gs/open5gs/issues/4491 Types: Exploit, Issue Tracking Added Reference Type VulDB: https://github.com/open5gs/open5gs/issues/4491 Types: Exploit, Issue Tracking Added Reference Type VulDB: https://github.com/open5gs/open5gs/pull/4496 Types: Issue Tracking, Patch Added Reference Type VulDB: https://vuldb.com/submit/800024 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/vuln/362338 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/vuln/362338/cti Types: Permissions Required, VDB Entry -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
May. 11, 2026
Action Type Old Value New Value Added Reference https://github.com/open5gs/open5gs/issues/4491 -
New CVE Received by [email protected]
May. 09, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 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 Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CWE CWE-119 Added CWE CWE-125 Added Reference https://github.com/open5gs/open5gs/ Added Reference https://github.com/open5gs/open5gs/commit/d5bc487fcf9ea87d2b03f2ef95123af344773bfb Added Reference https://github.com/open5gs/open5gs/issues/4491 Added Reference https://github.com/open5gs/open5gs/pull/4496 Added Reference https://vuldb.com/submit/800024 Added Reference https://vuldb.com/vuln/362338 Added Reference https://vuldb.com/vuln/362338/cti