Description

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.

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References

Other References

https://gist.github.com/hackeryounow/b1b6475d9c1d9b2bd1f1ef895d1f298c https://github.com/hackeryounow/5GCVulDB/tree/main/CVE-2026-37198 https://github.com/open5gs/open5gs/issues/4277 https://github.com/open5gs/open5gs/issues/4278

Frequently Asked Questions

What is CVE-2026-37198? +

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.

How do I check if I'm vulnerable to CVE-2026-37198? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.