VulnerabilityDeferred
CVE-2026-75439
An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF component
HIGH 7.5EPSS 0.76%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.76%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF component
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.76% probability · 55th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Source
- cve@mitre.org
EPSS 0.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://gist.github.com/hackeryounow/0f434c03008462e6eec3b43ed3cd12d8
- https://github.com/free5gc/free5gc/issues/1059
- https://github.com/free5gc/free5gc/issues/1059.https://github.com/free5gc/go-upf/pull/97
- https://github.com/free5gc/go-upf/pull/97
- https://github.com/hackeryounow/5GCVulDB/tree/main/CVE-2026-75439
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.