CVE-2025-15555

Name: CVE-2025-15555
Creator: NVD / NIST
Published: 2026-02-04T21:15:57.38+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.9/10EPSS 0.52%

Last modified Jun 17, 2026

CVE-2025-15555 is a medium-severity vulnerability rated 6.9/10 on the CVSS scale. A security flaw has been discovered in Open5GS up to 2.7.6. Affected by this vulnerability is the function hss_ogs_diam_cx_mar_cb of the file src/hss/hss-cx-path.c of the component VoLTE Cx-Test. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

Description

A security flaw has been discovered in Open5GS up to 2.7.6. Affected by this vulnerability is the function hss_ogs_diam_cx_mar_cb of the file src/hss/hss-cx-path.c of the component VoLTE Cx-Test. The manipulation of the argument OGS_KEY_LEN results in stack-based buffer overflow. The attack may be launched remotely. The patch is identified as 54dda041211098730221d0ae20a2f9f9173e7a21. A patch should be applied to remediate this issue.

Metrics

CVSS 3.1

8.2/10

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

CVSS 4.0

6.9/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.52%

40.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Open5gs	Open5gs	<= 2.7.6

References

https://github.com/open5gs/open5gs/Product
https://github.com/open5gs/open5gs/commit/54dda041211098730221d0ae20a2f9f9173e7a21Patch
https://github.com/open5gs/open5gs/issues/4177Exploit, Issue Tracking, Third Party Advisory
https://github.com/open5gs/open5gs/issues/4177#event-21256395700Exploit, Issue Tracking, Third Party Advisory
https://vuldb.com/submit/741901
https://vuldb.com/vuln/343795
https://vuldb.com/vuln/343795/cti
https://github.com/open5gs/open5gs/issues/4177#event-21256395700Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Feb 4, 2026
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2025-15555?

How severe is CVE-2025-15555?

CVE-2025-15555 has a CVSS score of 6.9/10 (MEDIUM severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2025-15555?

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-2025-15555?

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

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Source: NVD / NIST