Buffer Overflow Vulnerability in Open5GS by Open5GS
CVE-2026-71676

7.5HIGH

Key Information:

Vendor

Open5GS

Status
Open5GS
Vendor
CVE Published:
18 August 2026

What is CVE-2026-71676?

A buffer overflow vulnerability exists in Open5GS version 2.7.0, where an attacker can exploit the NAS 5GS decoder chain. By manipulating the message type byte of a NAS protocol data unit (PDU), a remote attacker may induce a denial of service condition, compromising the system's availability and performance.

References

https://gist.github.com/centauruszzz/0d267967fc5d072f31c8...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.