CVE-2026-75439 json
An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF component
published 2026-09-04 2 mo ago modified 2026-09-14 55 d ago also EUVD-2026-71771
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF component
Patch / fix
- github.com/free5gc/go-upf#97 pull request
- github.com/free5gc/free5gc/issues/1059.https://github.com/free5gc/go-… pull request
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 55 d ago
Exploit prediction
0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
References
Sources
- CVE List CVE-2026-75439
- NVD CVE-2026-75439
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