Is CVE-2026-52198 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-52198 being exploited in the wild.

How severe is CVE-2026-52198?

Informational severity, with a CVSS score of 7.5, published 30 June 2026.

Which products and versions are affected?

UTT NV518G nv518GV3v3.2.7-210919-161313.

Is there a fix for CVE-2026-52198?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-52198 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-52198?

Check whether you run UTT NV518G at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-52198: UTT nv518G heap buffer overflow in gohead component

CVE-2026-52198 · Severity: info · CVSS 7.5 · Published 2026-06-30

A buffer overflow vulnerability exists in the UTT nv518G enterprise router. This flaw allows a remote attacker to crash the device's web management service or the entire router by sending a specially crafted network request. An exploit could lead to a total loss of network connectivity and management capabilities for the affected business environment.

Technologies: UTT NV518G. Vendors: UTT.

Quick answers

Is CVE-2026-52198 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-52198 being exploited in the wild.
How severe is CVE-2026-52198?: Informational severity, with a CVSS score of 7.5, published 30 June 2026.
Which products and versions are affected?: UTT NV518G nv518GV3v3.2.7-210919-161313.
Is there a fix for CVE-2026-52198?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-52198 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-52198?: Check whether you run UTT NV518G at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A heap-based buffer overflow exists in the UTT nv518G router within the GoAhead web server component, specifically in function sub_425994. The vulnerability is caused by an unsafe strcpy operation where the 'Binds' parameter from a POST request is copied into a heap structure without a length check. A remote, unauthenticated attacker can exploit this by sending a long string in the 'Binds' parameter, leading to memory corruption and a denial of service (DoS). The issue was identified in firmware version nv518GV3v3.2.7-210919-161313.

Affected products

UTT nv518G nv518GV3v3.2.7-210919-161313

Timeline

2026-06-30: advisory: CVE-2026-52198 published by NVD/MITRE

References

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