CVE-2026-78186CWE-617

CVE-2026-78186

Medium · published August 24, 2026

CVSS v3.1

4.3

EPSS

Percentile

44.2

In the wild

Unconfirmed

What it is

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.

The record

Technical detail

CVSS v3.1: 4.3 · MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0: 5.3 · 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/E:P
EPSS: 0.00533 · 44.2th percentile
Weakness: CWE-617 · Reachable Assertion
Published: 2026-08-24T09:16Z

References (7)

https://github.com/open5gs/open5gs/ · [email protected]https://github.com/open5gs/open5gs/commit/c9abe09421eb99bbf1cd7862a3d375e58a4eb9e4 · [email protected]https://github.com/open5gs/open5gs/issues/4675 · [email protected]https://vuldb.com/cve/CVE-2026-78186 · [email protected]https://vuldb.com/submit/885203 · [email protected]https://vuldb.com/vuln/394568 · [email protected]https://vuldb.com/vuln/394568/cti · [email protected]

EPSS history

Timeline

24 AUG 04:15Z
Open5GS HSS hss-cx-path.c assertion
cvelistv5