Is CVE-2026-52196 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-52196 being exploited in the wild.

How severe is CVE-2026-52196?

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-2026-52196?

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-2026-52196 attacked?

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

Am I affected by CVE-2026-52196?

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-2026-52196: UTT nv518G Buffer Overflow in gohead/sub_416f28

CVE-2026-52196 · 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 by sending a specially crafted web request. An exploit would result in a denial of service, preventing administrators from managing the network and potentially disrupting network traffic.

Technologies: UTT NV518G. Vendors: UTT.

Quick answers

Is CVE-2026-52196 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-52196 being exploited in the wild.
How severe is CVE-2026-52196?: 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-2026-52196?: 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-2026-52196 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-52196?: 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 stack-based buffer overflow vulnerability exists in the GoAhead web server component of the UTT nv518G router, specifically within the function sub_416f28. The vulnerability is caused by the unsafe use of the 'strcpy' function when processing the 'GroupName' parameter from a POST request. The application fails to validate the length of the user-supplied string before copying it into a fixed-size buffer (InstPointByIndex + 180). A remote, unauthenticated attacker can exploit this by sending an oversized GroupName value, leading to a memory corruption that crashes the service (Denial of Service).

Affected products

UTT nv518G nv518GV3v3.2.7-210919-161313

Timeline

2026-06-30: disclosed: Initial disclosure and CVE assignment

References

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