Buffer Overflow Vulnerability in PFCP Library of Open5GS
CVE-2025-44952

7.8HIGH

Key Information:

Vendor

Open5GS

Status
PFCP Library
Vendor
CVE Published:
18 June 2025

What is CVE-2025-44952?

A vulnerability in the PFCP library of Open5GS allows local attackers to exploit a missing length check in the ogs_pfcp_subnet_add function. By manipulating the session.dnn field to exceed the expected length of 101, an attacker can trigger a buffer overflow, potentially leading to unauthorized access or system instability. This impacts Open5GS versions 2.7.2 and earlier, highlighting the importance of secure coding practices to mitigate such risks.

References

https://github.com/open5gs/open5gs/issues/3775
https://gist.github.com/scemodicecosa/8643fbfc9490f40e955...
https://gist.github.com/scmdcs/8643fbfc9490f40e955e9f9e9b...

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-44952 : Buffer Overflow Vulnerability in PFCP Library of Open5GS