CVE-2025-65561

Name: CVE-2025-65561
Creator: NVD / NIST
Published: 2025-12-18T19:16:33.633+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.37%

Last modified Jun 17, 2026

CVE-2025-65561 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in function LocalNode.Sess in free5GC 4.1.0 allowing attackers to cause a denial of service or other unspecified impacts via crafted header Local SEID to the PFCP Session Modification Request.. EPSS estimates a 0.37% chance of exploitation in the next 30 days.

Description

An issue was discovered in function LocalNode.Sess in free5GC 4.1.0 allowing attackers to cause a denial of service or other unspecified impacts via crafted header Local SEID to the PFCP Session Modification Request.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.37%

28.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Free5gc	Free5gc	4.1.0

References

https://github.com/free5gc/free5gc/issues/730Exploit, Issue Tracking, Third Party Advisory
https://github.com/free5gc/go-upf/pull/80Issue Tracking
https://github.com/free5gc/free5gc/issues/730Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Dec 18, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-65561?

How severe is CVE-2025-65561?

CVE-2025-65561 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.

How do I fix CVE-2025-65561?

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-2025-65561?

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

Scan your code now

Source: NVD / NIST