CVE-2026-78186

medium

Description

A flaw has been found in Open5GS up to 2.8.0. This affects an unknown function of the file src/hss/hss-cx-path.c of the component HSS. This manipulation of the argument User-Name causes reachable assertion. The attack is possible to be carried out remotely. The exploit has been published and may be used. Patch name: c9abe09421eb99bbf1cd7862a3d375e58a4eb9e4. It is recommended to apply a patch to fix this issue.

References

https://vuldb.com/vuln/394568/cti

https://vuldb.com/vuln/394568

https://vuldb.com/submit/885203

https://vuldb.com/cve/CVE-2026-78186

https://github.com/open5gs/open5gs/issues/4675

https://github.com/open5gs/open5gs/commit/c9abe09421eb99bbf1cd7862a3d375e58a4eb9e4

https://github.com/open5gs/open5gs/

Details

Source: Mitre, NVD

Published: 2026-08-24

Updated: 2026-08-24

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 4.3

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

Severity: Medium

CVSS v4

Base Score: 5.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.0039