PatchTheCVECVE-2026-26025: free5GC SMF provides Session Management Function for free5GC, an open-source project for 5th generation (5G) m
CVE-2026-26025 is a high-severity flaw (CVSS 7.5) affecting smf. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
free5GC SMF provides Session Management Function for free5GC, an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, SMF panics and terminates when processing a malformed PFCP SessionReportRequest on the PFCP (UDP/8805) interface. No known upstream fix is available, but some workarounds are available. ACL/firewall the PFCP interface so only trusted UPF IPs can reach SMF (reduce spoofing/abuse
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 71%) |
| CISA exploited list | No |
| Weakness | CWE-476 |
| Published | 2026-02-24 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-26025?
smf: upgrade to newer than 1.4.1. Exact commands for each OS are on this page.
Is CVE-2026-26025 being exploited?
CVE-2026-26025 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-26025 affect?
CVE-2026-26025 affects smf. Severity is high (CVSS 7.5). free5GC SMF provides Session Management Function for free5GC, an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, SMF panics and terminates when processing a malformed PFCP SessionRepo
How urgent is CVE-2026-26025?
Priority 43/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action
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