CVE-2026-8224

Open5GS PCF context.c pcf_sess_set_ipv6prefix denial of service

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.

Affected

Open5GS

CVSS v4.0 VULDB

5.5 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/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 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 VULDB

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

CVSS v2.0 VULDB

5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

0.88% chance of exploitation in the next 30 days, 58th percentile

Published

2026-05-10

Updated

2026-05-11

Proof-of-concept exploits (1)

• open5gs/open5gs/issues/44392770★ · 2026-10-15

Security advisories

• https://vuldb.com/submit/808443
• https://vuldb.com/vuln/362441

References

• CVE Record
• NVD entry