# CVE-2026-14721: UTT HiPER 1250GW stack overflow in ConfigWirelessBase_5g

Source: https://junglewise.ai/threats/cve-2026-14721-utt-hiper-1250gw-stack-overflow-in-configwirelessbase-5g  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-05. Updated: 2026-07-05  
License: CC BY 4.0 with a link back

CVE-2026-14721 · Severity: high · CVSS 8.8 · Published 2026-07-05

The UTT HiPER 1250GW router, a device used for enterprise networking, contains a security flaw in its web management interface. An attacker with access to the management console can send a specially crafted request to the wireless configuration settings to crash the device or potentially take full control of it. This could lead to a complete disruption of network services or unauthorized access to internal network traffic.

Technologies: [UTT HiPER 1250GW](https://junglewise.ai/threats/technologies/hiper-1250gw). Vendors: [UTT](https://junglewise.ai/threats/vendors/utt).

## Quick answers

**Is CVE-2026-14721 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-14721 being exploited in the wild.

**How severe is CVE-2026-14721?** High severity, with a CVSS score of 8.8, published 5 July 2026.

**Which products and versions are affected?** UTT HiPER 1250GW up to 3.2.7-210907-180535.

**Is there a fix for CVE-2026-14721?** 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-2026-14721 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-14721?** Check whether you run UTT HiPER 1250GW 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 exists in the UTT HiPER 1250GW router firmware up to version 3.2.7-210907-180535. The vulnerability is located within the Web Endpoint component, specifically in the '/goform/ConfigWirelessBase_5g' file. The root cause is the unsafe use of the 'strcpy' function when processing the 'ssid' (or 'Profile') parameter without adequate boundary checks. A remote attacker with low-level authentication can exploit this by sending a POST request with an oversized SSID string, leading to memory corruption. This can result in a denial of service (system crash) or potentially arbitrary code execution. A public exploit (PoC) has been disclosed.

## Affected products

- UTT HiPER 1250GW up to 3.2.7-210907-180535

## Timeline

- 2026-07-05: disclosed: Vulnerability disclosed to vendor and public via GitHub/VulDB
- 2026-07-05: advisory: CVE-2026-14721 published

## References

- [https://github.com/J-CLOWN-TAROT/UTT](https://github.com/J-CLOWN-TAROT/UTT)
- [https://vuldb.com/cve/CVE-2026-14721](https://vuldb.com/cve/CVE-2026-14721)
- [https://vuldb.com/submit/847632](https://vuldb.com/submit/847632)
- [https://vuldb.com/vuln/376308](https://vuldb.com/vuln/376308)
- [https://vuldb.com/vuln/376308/cti](https://vuldb.com/vuln/376308/cti)

## Related threats

- [UTT HiPER 1250GW stack buffer overflow in HTTP request handler](https://junglewise.ai/threats/cve-2026-78169-utt-hiper-1250gw-stack-buffer-overflow-in-http-request-handler)
- [UTT HiPER 1250GW stack buffer overflow in getOneApConfTempEntry](https://junglewise.ai/threats/cve-2026-18897-utt-hiper-1250gw-stack-buffer-overflow-in-getoneapconftempentry)
- [UTT HiPER 1250GW stack buffer overflow in APSecurity_5g](https://junglewise.ai/threats/cve-2026-18895-utt-hiper-1250gw-stack-buffer-overflow-in-apsecurity-5g)
- [UTT HiPER Router stack buffer overflow in formFireWall](https://junglewise.ai/threats/cve-2026-10293-utt-hiper-router-stack-buffer-overflow-in-formfirewall)
- [UTT HiPER 1250GW stack overflow in formGroupConfig](https://junglewise.ai/threats/cve-2026-9632-utt-hiper-1250gw-stack-overflow-in-formgroupconfig)