# CVE-2026-116233: Oray Pugongying X5 Pro CRLF injection in Dnsmasq

Source: https://junglewise.ai/threats/cve-2026-116233-a-security-vulnerability-has-been-detected-in-oray-pugongying-x5  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-26. Updated: 2026-10-26  
License: CC BY 4.0 with a link back

CVE-2026-116233 · Severity: critical · CVSS 9.1 · Published 2026-10-26

Oray Pugongying X5 Pro is a network router that uses Dnsmasq for DNS and DHCP services. An attacker can remotely inject CRLF (carriage return/line feed) characters into DHCP lease time parameters, allowing manipulation of Dnsmasq configuration directives. This could enable DNS hijacking, traffic redirection, or other network-level attacks without requiring authentication.

Technologies: [Oray Pugongying X5 Pro](https://junglewise.ai/threats/technologies/pugongying-x5-pro). Vendors: [Oray](https://junglewise.ai/threats/vendors/oray).

## Quick answers

**Is CVE-2026-116233 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-116233 being exploited in the wild.

**How severe is CVE-2026-116233?** Critical severity, with a CVSS score of 9.1, published 26 October 2026.

**Which products and versions are affected?** Oray Pugongying X5 Pro 7.6.1.

**Is there a fix for CVE-2026-116233?** 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-2026-116233 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-116233?** Check whether you run Oray Pugongying X5 Pro 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 CRLF injection vulnerability exists in Oray Pugongying X5 Pro 7.6.1 where the rent_time (DHCP lease time) argument in Dnsmasq is not properly sanitized. An unauthenticated remote attacker can inject CRLF sequences to break out of the current directive and inject arbitrary Dnsmasq configuration directives. The vulnerability is reachable via the network without prior authentication and has been publicly disclosed.

## Affected products

- Oray Pugongying X5 Pro 7.6.1

## Timeline

- 2026-10-26: disclosed

## References

- [https://app.notion.com/p/Oray-Pgyer-X5-Pro-Router-7-6-1-Dnsmasq-Directive-Injection-Through-DHCP-Lease-Time-3ea797159f1580979394d23087844670](https://app.notion.com/p/Oray-Pgyer-X5-Pro-Router-7-6-1-Dnsmasq-Directive-Injection-Through-DHCP-Lease-Time-3ea797159f1580979394d23087844670)
- [https://vuldb.com/cve/CVE-2026-116233](https://vuldb.com/cve/CVE-2026-116233)

## Related threats

- [Oray Pugongying X5 Pro path traversal in config_restore_ex](https://junglewise.ai/threats/cve-2026-120225-a-weakness-has-been-identified-in-oray-pugongying-x5-pro-up-to-7)
- [Oray Pugongying X5 Pro API authorization bypass](https://junglewise.ai/threats/cve-2026-120224-a-security-flaw-has-been-discovered-in-oray-pugongying-x5-pro-up)
- [Oray Pugongying X5 Pro CRLF injection in Dnsmasq](https://junglewise.ai/threats/cve-2026-116237-a-vulnerability-was-found-in-oray-pugongying-x5-pro-7-6-1-this)
- [Oray Pugongying X5 Pro unrestricted file upload in PPPoE handler](https://junglewise.ai/threats/cve-2026-116236-a-vulnerability-has-been-found-in-oray-pugongying-x5-pro-7-6-1)
- [Oray Pugongying X5 Pro CRLF injection in L2TP authentication](https://junglewise.ai/threats/cve-2026-116235-a-flaw-has-been-found-in-oray-pugongying-x5-pro-7-6-1-affected)