CVE-2026-8224 Open5GS PCF context.c pcf_sess_set_ipv6prefix denial of service
Remote attackers can cause denial of service in Open5GS PCF by manipulating IPv6 prefix arguments, requiring immediate attention from 5G network operators.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8224?
CVE-2026-8224 is a medium-severity denial of service vulnerability in Open5gs Open5gs, published on 10 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-404
Which versions are affected by CVE-2026-8224?
It affects 1 product.
Products include Open5gs Open5gs.
How do I fix CVE-2026-8224?
No fix has been published for CVE-2026-8224 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-8224 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8224 exists.
Other vulnerabilities in Open5gs Open5gs
Sources
Also known as GHSA-x82j-9gmv-pv8w.