# free5GC Udr vulnerabilities

Source: https://junglewise.ai/threats/technologies/udr  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/udr.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 7 vulnerabilities in free5GC Udr: 0 in the last 7 days and 1 in the last 90 days, 2 of them critical and 2 exploited in the wild. The most recent, CVE-2026-47780, was published on 15 September 2026. Nothing in the last four weeks, down from 1 vulnerability in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 1
- All time: 7 (2 critical, 2 exploited in the wild)

## About free5GC Udr

UDR is a User Data Repository component in the free5GC 5G core network implementation.

## Latest free5GC Udr vulnerabilities

- [CVE-2026-47780: free5GC UDR improper input validation in EE subscription handlers](https://junglewise.ai/threats/cve-2026-47780-free5gc-udr-improper-input-validation-in-ee-subscription-handlers) (medium, CVSS 4, published 15 Sep 2026)
- [CVE-2026-44324: free5GC UDR denial of service via nil type assertion](https://junglewise.ai/threats/cve-2026-44324-free5gc-udr-denial-of-service-via-nil-type-assertion) (medium, CVSS 6.5, published 27 May 2026)
- [CVE-2026-44323: free5GC UDR nil pointer dereference in nudr-dr DELETE handler](https://junglewise.ai/threats/cve-2026-44323-free5gc-udr-nil-pointer-dereference-in-nudr-dr-delete-handler) (medium, CVSS 4.3, published 27 May 2026)
- [CVE-2026-34910: Ubiquiti UniFi OS command injection via improper input validation](https://junglewise.ai/threats/cve-2026-34910-ubiquiti-unifi-os-command-injection-via-improper-input-validation) (critical, exploited in the wild, CVSS 10, published 22 May 2026)
- [CVE-2026-34908: Ubiquiti UniFi OS improper access control](https://junglewise.ai/threats/cve-2026-34908-ubiquiti-unifi-os-improper-access-control) (critical, exploited in the wild, CVSS 10, published 22 May 2026)
- [CVE-2026-40343: free5GC UDR: Fail-open handling in PolicyDataSubsToNotifyPost allows unintended subscription creation](https://junglewise.ai/threats/cve-2026-40343-free5gc-udr-fail-open-handling-in-policydatasubstonotifypost) (medium, CVSS 5.8, published 22 Apr 2026)
- [CVE-2026-40245: free5gc UDR information disclosure in nudr-dr service](https://junglewise.ai/threats/cve-2026-40245-free5gc-udr-information-disclosure-in-nudr-dr-service) (high, CVSS 7.5, published 14 Apr 2026)

## Most severe free5GC Udr vulnerabilities

- [CVE-2026-34910: Ubiquiti UniFi OS command injection via improper input validation](https://junglewise.ai/threats/cve-2026-34910-ubiquiti-unifi-os-command-injection-via-improper-input-validation) (critical, exploited in the wild, CVSS 10, published 22 May 2026)
- [CVE-2026-34908: Ubiquiti UniFi OS improper access control](https://junglewise.ai/threats/cve-2026-34908-ubiquiti-unifi-os-improper-access-control) (critical, exploited in the wild, CVSS 10, published 22 May 2026)
- [CVE-2026-40245: free5gc UDR information disclosure in nudr-dr service](https://junglewise.ai/threats/cve-2026-40245-free5gc-udr-information-disclosure-in-nudr-dr-service) (high, CVSS 7.5, published 14 Apr 2026)
- [CVE-2026-44324: free5GC UDR denial of service via nil type assertion](https://junglewise.ai/threats/cve-2026-44324-free5gc-udr-denial-of-service-via-nil-type-assertion) (medium, CVSS 6.5, published 27 May 2026)
- [CVE-2026-40343: free5GC UDR: Fail-open handling in PolicyDataSubsToNotifyPost allows unintended subscription creation](https://junglewise.ai/threats/cve-2026-40343-free5gc-udr-fail-open-handling-in-policydatasubstonotifypost) (medium, CVSS 5.8, published 22 Apr 2026)
- [CVE-2026-44323: free5GC UDR nil pointer dereference in nudr-dr DELETE handler](https://junglewise.ai/threats/cve-2026-44323-free5gc-udr-nil-pointer-dereference-in-nudr-dr-delete-handler) (medium, CVSS 4.3, published 27 May 2026)
- [CVE-2026-47780: free5GC UDR improper input validation in EE subscription handlers](https://junglewise.ai/threats/cve-2026-47780-free5gc-udr-improper-input-validation-in-ee-subscription-handlers) (medium, CVSS 4, published 15 Sep 2026)

## Vulnerabilities per week

Nothing in the last four weeks, down from 1 vulnerability in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 1 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other free5GC technologies

- [free5GC](https://junglewise.ai/threats/technologies/free5gc): 29 vulnerabilities
- [free5GC Nef](https://junglewise.ai/threats/technologies/nef): 7 vulnerabilities
- [free5GC Pcf](https://junglewise.ai/threats/technologies/pcf): 4 vulnerabilities
- [free5GC NRF](https://junglewise.ai/threats/technologies/nrf): 3 vulnerabilities
- [free5GC SMF](https://junglewise.ai/threats/technologies/smf): 3 vulnerabilities
- [free5GC Udm](https://junglewise.ai/threats/technologies/udm): 3 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "free5GC Udr vulnerabilities", https://junglewise.ai/threats/technologies/udr, 9 November 2026.