CVE-2025-55904

Name: CVE-2025-55904
Creator: NVD / NIST
Published: 2025-09-17T14:15:40.05+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4/10EPSS 0.19%

Last modified Jun 17, 2026

CVE-2025-55904 is a medium-severity vulnerability rated 4/10 on the CVSS scale. Open5GS v2.7.5, prior to commit 67ba7f92bbd7a378954895d96d9d7b05d5b64615, is vulnerable to a NULL pointer dereference when a multipart/related HTTP POST request with an empty HTTP body is sent to the SBI of either AMF, AUSF, BSF, NRF, NSSF, PCF, SMF, UDM, or UDR, resulting in a denial of service. This occurs in the parse_multipart function in lib/sbi/message.c.. EPSS estimates a 0.19% chance of exploitation in the next 30 days.

Description

Open5GS v2.7.5, prior to commit 67ba7f92bbd7a378954895d96d9d7b05d5b64615, is vulnerable to a NULL pointer dereference when a multipart/related HTTP POST request with an empty HTTP body is sent to the SBI of either AMF, AUSF, BSF, NRF, NSSF, PCF, SMF, UDM, or UDR, resulting in a denial of service. This occurs in the parse_multipart function in lib/sbi/message.c.

Metrics

CVSS 3.1

4/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Probability

0.19%

8.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Open5gs	Open5gs	< 2.7.6

References

https://github.com/open5gs/open5gs/commit/67ba7f92bbd7a378954895d96d9d7b05d5b64615Patch
https://github.com/open5gs/open5gs/issues/3942Exploit, Issue Tracking
https://github.com/tsiamoulis/vuln-research/tree/main/CVE-2025-55904Exploit, Third Party Advisory

Timeline

Published: Sep 17, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-55904?

How severe is CVE-2025-55904?

CVE-2025-55904 has a CVSS score of 4/10 (MEDIUM severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.

How do I fix CVE-2025-55904?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-55904?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST