Oray Pugongying X5 Pro Dnsmasq crlf injection

published 2026-10-26 14 d ago modified 2026-10-31 9 d ago also EUVD-2026-109657

cvss: 9.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits: 0; none known

A security vulnerability has been detected in Oray Pugongying X5 Pro 7.6.1. This impacts an unknown function of the component Dnsmasq. The manipulation of the argument rent_time leads to crlf injection. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 9 d ago (2026-10-31)

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

app.notion.com https://app.notion.com/p/Oray-Pgyer-X5-Pro-Router-7-6-1-Dnsmasq-Directive-Injection-Through-DHCP-Lease-Time-3ea797159f1580979394d23087844670 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	9.4	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
CNA	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
CNA	3.0	9.1	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
CNA	2.0	8.3	AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
CNA	4.0	8.5	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CNA	2.0	8.3	AV:N/AC:L/Au:M/C:C/I:C/A:C

Affected products

Oray Pugongying X5 Pro

Classification

Weakness

CWE-93 Improper Neutralization of CRLF Sequences
CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

app.notion.com /p/Oray-Pgyer-X5-Pro-Router-7-6-1-Dnsmasq-Directive-Injection-Through-DHCP-Lease-Time-3ea797159f1580979394d230
exploit
vuldb.com /vuln/426282
vdb-entry, technical-description
vuldb.com /vuln/426282/cti
signature, permissions-required
vuldb.com /cve/CVE-2026-116233
third-party-advisory
vuldb.com /submit/1005081
third-party-advisory

Sources

CVE List CVE-2026-116233
NVD CVE-2026-116233

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary