CVE-2026-78186

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.

CVSS v4.0

2.1 LOWCVSS: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/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

CVSS v3.1

4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS v2.0

4.0 MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P

EPSS

0.39% chance of exploitation in the next 30 days, 32th percentile

Published

2026-08-24

Proof-of-concept exploits (1)

• open5gs/open5gs/issues/4675

References

• CVE Record
• NVD entry

Related

• CVE-2026-78185
• CVE-2026-78187
• CVE-2026-78182
• CVE-2026-78197
• CVE-2026-78181
• CVE-2026-78198