An integer overflow in the SMF component of Open5GS v2.7.6 allows attackers to cause a Denial of Service (DoS) via supplying a crafted GTP packet. (CVE-2026-37198)
Description
An integer overflow vulnerability exists in the SMF component of Open5GS version 2.7.6. This flaw can be triggered by an attacker supplying a crafted GTP packet, resulting in a Denial of Service (DoS) condition. The vulnerability does not impact confidentiality or integrity but causes service disruption.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-37198 describes an integer overflow in the SMF (Session Management Function) component of Open5GS version 2.7.6. By sending a specially crafted GTP (GPRS Tunneling Protocol) packet, an attacker can exploit this overflow to cause a Denial of Service, crashing or destabilizing the affected component. The vulnerability is classified under CWE-190 (Integer Overflow or Wraparound).
Potential Impact
Successful exploitation leads to a Denial of Service (DoS) condition, impacting availability of the SMF component in Open5GS v2.7.6. There is no indication of confidentiality or integrity compromise. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, consider limiting exposure of the SMF component to untrusted networks and monitoring for anomalous GTP traffic.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-3q9g-cv44-9m67
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-37198"]
- State
- PUBLISHED
Threat ID: 6a91a86aacd9273b4906992b
Added to database: 08/28/2026, 15:25:30 UTC
Last enriched: 09/08/2026, 05:37:36 UTC
Last updated: 10/10/2026, 18:48:19 UTC
Views: 32
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