CVE-2026-8224

MEDIUM

Open5GS PCF context.c pcf_sess_set_ipv6prefix denial of service

Title source: cna
STIX 2.1

Description

A vulnerability was determined in Open5GS up to 2.7.7. Affected by this issue is the function pcf_sess_set_ipv6prefix of the file /src/pcf/context.c of the component PCF. Executing a manipulation of the argument SmPolicyContextData.ipv6AddressPrefix can lead to denial of service. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-362441 | Open5GS PCF context.c pcf_sess_set_ipv6prefix denial of service
https://vuldb.com/vuln/362441
Signature, Permissions Required signature permissions-required
VDB-362441 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/362441/cti
Third Party Advisory third-party-advisory
Submit #808443 | Open5gs PCF v2.7.7 Denial of Service
https://vuldb.com/submit/808443
Exploit exploit issue-tracking
https://github.com/open5gs/open5gs/issues/4439

Scores

CVSS v3 5.3
EPSS 0.0050
EPSS Percentile 38.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-404
Status published
Products (9)
None/Open5GS 2.7.0
None/Open5GS 2.7.1
None/Open5GS 2.7.2
None/Open5GS 2.7.3
None/Open5GS 2.7.4
None/Open5GS 2.7.5
None/Open5GS 2.7.6
None/Open5GS 2.7.7
open5gs/open5gs < 2.7.7
Published May 10, 2026
Tracked Since May 10, 2026