Critical Injection exploit reference

CVE-2026-116233 — Oray Pugongying X5 Pro Dnsmasq crlf injection

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.

Published Oct 26, 2026 · Updated Oct 26, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: VulDB

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.5% (30-day exploitation probability)+6
Technical severity (critical)+10

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.46%

ahead of 40% of scored CVEs · Oct 29, 2026

Affects

Oray

Pugongying X5 Pro

CVSS base

9.1

Critical · 2 source(s)

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Oray Pugongying X5 Pro).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes matching the vulnerability class (injection), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Oray	Pugongying X5 Pro	version 7.6.1	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Network

Attack complexity

Low

Privileges required

High

User interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
9.4	CVSS 4.0	Critical	—	—	VulDB via CVE Program (cve.org) e CISA ADP
8.5	CVSS 4.0	High	—	—	cna@vuldb.com via NIST National Vulnerability Database
9.1	CVSS 3.1	Critical	2.3	6.0	cna@vuldb.com via NIST National Vulnerability Database
9.1	CVSS 3.1	Critical	—	—	VulDB via CVE Program (cve.org) e CISA ADP
9.1	CVSS 3.0	Critical	—	—	VulDB via CVE Program (cve.org) e CISA ADP
8.3	CVSS 2.0	High	6.4	10.0	cna@vuldb.com via NIST National Vulnerability Database
8.3	CVSS 2.0	High	—	—	VulDB via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H (score shown at the top: cna@vuldb.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-74 · Injection

Other CVEs with this weakness →

EPSS over time FIRST

Oct 26, 2026 → Oct 29, 2026 · 4 reading(s) · max 0.46%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
Look for parameters with command/query metacharacters and unexpected child processes of the service.

web/proxy/WAF logsnetwork IDS/IPSapplication logsendpoint telemetry (EDR)

Timeline

What happened to this CVE, newest first.

2026
Source status changed · Received → Deferred
Oct 26, 2026 · NIST National Vulnerability Database
Affected products added · oray/pugongying x5 pro
Oct 26, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 26, 2026
CVSS changed · 9.1
Oct 26, 2026 · NIST National Vulnerability Database
Source status changed · → Received
Oct 26, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 26, 2026 · Alertas do Telegram
CVE published
Oct 26, 2026 · VulDB

Source activity

Repeated readings are counted rather than listed.

1× References added · Oct 26, 2026 – Oct 26, 2026
1× Official description updated · Oct 26, 2026 – Oct 26, 2026

References

5 on the record

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

Elsewhere on this site

Oray
every CVE for this vendor

Injection
same class

CWE-74
other pages naming this weakness

Related CVEs (same products)

High CVE-2026-116237 Oray Pugongying X5 Pro Dnsmasq crlf injection 4d
Critical CVE-2026-116235 Oray Pugongying X5 Pro L2TP Authentication crlf injection 4d
High CVE-2026-116236 Oray Pugongying X5 Pro PPPoE WAN Setting upload_files plugin_init unrestricted upload 4d
Critical CVE-2026-116234 Oray Pugongying X5 Pro IPsec Policy ipsec.conf crlf injection 4d
Critical CVE-2026-116231 Oray Pugongying X5 Pro Ser2net crlf injection 4d
Critical CVE-2026-116232 Oray Pugongying X5 Pro SNMP snmp_set crlf injection 4d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-116233 is "Oray Pugongying X5 Pro Dnsmasq crlf injection", rated Critical. It affects Pugongying X5 Pro (Oray); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 9.1 describes technical severity. EPSS 0.46% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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