Medium 5.3Published Mar 20, 2026

CVE-2026-33192Free5GC is an open-source Linux Foundation project for 5th generation (5G) mobile core networks.

Updated under an hour ago (2026-10-19 07:50 UTC)

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It affects free5gc udm. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for free5gc udm

Exploited in the last 30 days

Free5GC is an open-source Linux Foundation project for 5th generation (5G) mobile core networks. In versions prior to 1.4.2, the UDM incorrectly converts a downstream 400 Bad Request (from UDR) into a 500 Internal Server Error when handling PATCH requests with an empty supi path parameter. Additionally, the UDM incorrectly translates the PATCH method to PUT when forwarding to UDR, indicating a deeper architectural issue. This leaks internal error handling behavior, making it difficult for clients to distinguish between client-side errors and server-side failures. The issue has been patched in version 1.4.2.

CVSS: 5.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-209
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

free5gc udm free5gc:udm	before 1.4.2	NVD

References

https://github.com/free5gc/free5gc/issues/784exploit, issue-tracking, patch, vendor-advisory
https://github.com/free5gc/free5gc/security/advisories/GHSA-5rvc-5cwx-g5x8patch, vendor-advisory
https://github.com/free5gc/udm/pull/79issue-tracking, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.