Quick answers
- Is CVE-2026-52190 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-52190 being exploited in the wild.
- How severe is CVE-2026-52190?
- Informational severity, with a CVSS score of 7.5, published 1 July 2026.
- Which products and versions are affected?
- UTT NV518G nv518GV3v3.2.7-210919-161313.
- Is there a fix for CVE-2026-52190?
- 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-2026-52190 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-52190?
- 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 UTT nv518G router (firmware version nv518GV3v3.2.7-210919-161313) within the 'gohead/sub_448384' component. The vulnerability is rooted in the 'websRedirectUrcp' function, which retrieves a user-controlled parameter via 'websGetVar' and subsequently processes it using 'sprintf' into a fixed-size buffer (v6) without adequate bounds checking. An attacker can exploit this by sending a POST request with an oversized 'isGroupOpt' parameter. Successful exploitation leads to a crash of the GoAhead process, resulting in a denial of service (DoS). No authentication appears to be required for this network-reachable endpoint.
Affected products
- UTT nv518G nv518GV3v3.2.7-210919-161313
Timeline
- 2026-07-01: disclosed: Initial publication of CVE-2026-52190