Integer Overflow Vulnerability in Open5GS by Open5GS
CVE-2026-37198

7.5HIGH

Key Information:

Vendor

Open5GS

Status
Open5GS
Vendor
CVE Published:
27 August 2026

What is CVE-2026-37198?

An integer overflow vulnerability exists in the SMF component of Open5GS v2.7.6, which can be exploited by attackers to trigger a Denial of Service (DoS). This is achieved by sending specially crafted GTP packets that manipulate the buffer handling process, resulting in system instability and service interruption. Organizations utilizing Open5GS should prioritize patching to mitigate this risk.

References

https://github.com/open5gs/open5gs/issues/4277
https://github.com/open5gs/open5gs/issues/4278
https://github.com/hackeryounow/5GCVulDB/tree/main/CVE-20...

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

.