CVE-2026-78186

Open5GS HSS hss-cx-path.c assertion

Assigner: VulDB
Reserved: 23.08.2026 Published: 24.08.2026 Updated: 24.08.2026

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.

Metrics

CVSS 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/E:P
CVSS Score: 5.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
CVSS Score: 4.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	Low

CVSS 3.1

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
CVSS Score: 4.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	Low

CVSS 3.0

CVSS Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C
CVSS Score: 4

Access Vector	Network	Confidentiality Impact	None
Access Complexity	Low	Integrity Impact	None
Authentication	Single	Availability Impact	Partial

CVSS 2.0

Product Status

Vendor	n/a
Product	Open5GS
Versions	Version 2.0 is affected Version 2.1 is affected Version 2.2 is affected Version 2.3 is affected Version 2.4 is affected Version 2.5 is affected Version 2.6 is affected Version 2.7 is affected Version 2.8.0 is affected

Vendor

n/a

Product

Open5GS

Versions

Version 2.0 is affected
Version 2.1 is affected
Version 2.2 is affected
Version 2.3 is affected
Version 2.4 is affected
Version 2.5 is affected
Version 2.6 is affected
Version 2.7 is affected
Version 2.8.0 is affected

Credits

WeiYi (VulDB User) reporter

References

Problem Types