# CVE-2026-11517: UTT HiPER 2610G buffer overflow in formConfigDnsFilterGlobal

Source: https://junglewise.ai/threats/cve-2026-11517-utt-hiper-2610g-buffer-overflow-in-formconfigdnsfilterglobal  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-08. Updated: 2026-06-08  
License: CC BY 4.0 with a link back

CVE-2026-11517 · Severity: high · CVSS 8.8 · Published 2026-06-08

A security vulnerability exists in the UTT HiPER 2610G router, a device used for enterprise networking and internet connectivity. An attacker can exploit a flaw in the device's web management interface to cause a system crash or potentially take control of the router. This could lead to a total loss of internet availability for the office or unauthorized access to internal network traffic.

Vendors: [UTT](https://junglewise.ai/threats/vendors/utt).

## Quick answers

**Is CVE-2026-11517 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-11517 being exploited in the wild.

**How severe is CVE-2026-11517?** High severity, with a CVSS score of 8.8, published 8 June 2026.

**Which products and versions are affected?** UTT HiPER 2610G up to 3.0.0-171107.

**Is there a fix for CVE-2026-11517?** 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-2026-11517 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-11517?** Check whether you run UTT HiPER 2610G 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 HiPER 2610G router firmware up to version 3.0.0-171107. The flaw is located in the '/goform/formConfigDnsFilterGlobal' endpoint due to the unsafe use of the 'strcpy' function when processing the 'GroupName' parameter. A remote attacker with low-level privileges can provide an overly long string to this parameter to overwrite memory. This can result in a denial-of-service (DoS) or arbitrary code execution. The exploit has been publicly disclosed.

## Affected products

- UTT HiPER 2610G up to 3.0.0-171107

## Timeline

- 2026-06-08: disclosed: Vulnerability disclosed and assigned CVE-2026-11517
- 2026-06-08: advisory: NVD published the vulnerability details

## References

- [https://github.com/HungryGoogle/log_attack/tree/main/index3](https://github.com/HungryGoogle/log_attack/tree/main/index3)
- [https://vuldb.com/cve/CVE-2026-11517](https://vuldb.com/cve/CVE-2026-11517)
- [https://vuldb.com/submit/836278](https://vuldb.com/submit/836278)
- [https://vuldb.com/vuln/369137](https://vuldb.com/vuln/369137)
- [https://vuldb.com/vuln/369137/cti](https://vuldb.com/vuln/369137/cti)

## Related threats

- [UTT HiPER 2610G buffer overflow in formNatStaticMap](https://junglewise.ai/threats/cve-2026-11516-utt-hiper-2610g-buffer-overflow-in-formnatstaticmap)