CVE-2026-108102: Open5GS through 2.8.0 Heap Out-of-Bounds Read via PFCP Volume Measurement IE
Open5GS through 2.8.0 contains a heap out-of-bounds read vulnerability in ogspfcpparsevolumemeasurement() in lib/pfcp/types.c that allows remote unauthenticated attackers to read past IE buffers. Attackers can send a PFCP Session Report Request to the SMF on UDP port 8805 with a short, all-flags Volume Measurement IE, reading up to 48 bytes and potentially crashing the SMF.
Affected Software
Event History
Frequently Asked Questions
Which systems are exposed to exploitation?
Open5GS deployments through version 2.8.0 are exposed where an attacker can send PFCP Session Report Requests to the SMF on UDP port 8805. The issue is remotely exploitable without authentication.
What does an attacker need to send?
The attacker must send a PFCP Session Report Request containing a short Volume Measurement information element with all flags set. Processing this element can cause the PFCP parser to read up to 48 bytes past the IE buffer.
What is the likely impact of successful exploitation?
The described impact is an out-of-bounds read that may disclose data beyond the information-element buffer and can potentially crash the SMF. The provided information does not describe integrity impact or code execution.