Medium

CVE-2025-68403 — Inadequate Steps to Confirm Vulnerability in QuRouter

An external control of system or configuration setting vulnerability has been reported to affect QuRouter. If a local attacker gains an administrator account, they can then exploit the vulnerability to modify data on the system. We have already fixed the vulnerability in the following version: QuRouter 2.7.2.113 and later

Published Oct 15, 2026 · Updated Oct 15, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: qnap

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

Technical severity (medium)+3

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

—

No EPSS score.

Affects

QNAP Systems Inc.

QuRouter

CVSS base

4.6

Medium · 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 (QNAP Systems Inc. QuRouter).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
QNAP Systems Inc.	QuRouter	≥ 2.7.x and < 2.7.2.113	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

Local

Attack complexity

Low

Attack requirements

None

Privileges required

High

User interaction

None

Scope

Confidentiality (vulnerable system)

None

Integrity (vulnerable system)

Low

Availability (vulnerable system)

None

Confidentiality (subsequent)

None

Integrity (subsequent)

None

Availability (subsequent)

None

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
4.6	CVSS 4.0	Medium	—	—	security@qnapsecurity.com.tw via NIST National Vulnerability Database
4.6	CVSS 4.0	Medium	—	—	qnap via CVE Program (cve.org) e CISA ADP

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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

(score shown at the top: security@qnapsecurity.com.tw)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-15

Other CVEs with this weakness →

Detection

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

Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.

endpoint telemetry (EDR)

Timeline

What happened to this CVE, newest first.

2026
Source status changed · Received → Awaiting Analysis
Oct 15, 2026 · NIST National Vulnerability Database
CVSS changed · 1.0 → 4.6
Oct 15, 2026 · NIST National Vulnerability Database
Affected products added · qnap systems inc./qurouter
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 15, 2026
CVSS changed · 1.0
Oct 15, 2026 · NIST National Vulnerability Database
Source status changed · → Received
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · Alertas do Telegram
CVE published
Oct 15, 2026 · qnap

Source activity

Repeated readings are counted rather than listed.

1× References added · Oct 15, 2026 – Oct 15, 2026
1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

1 on the record

www.qnap.com/en/release-notes/qurouter/overview/2.7
release-notes, NIST National Vulnerability Database

Elsewhere on this site

QNAP Systems Inc.
every CVE for this vendor

CWE-15
other pages naming this weakness

Related CVEs (same products)

Medium CVE-2026-24715 Lack of Reproducible Vulnerability Evidence in QNAP Report 12h
High CVE-2025-68404 vcs_pentest Race Condition Authentication Bypass Vulnerability in QuRouter management interface 12h
Medium CVE-2025-62846 QuRouter Mar 20, 2026
Medium CVE-2025-62844 QuRouter Mar 20, 2026
Medium CVE-2025-62845 QuRouter Mar 20, 2026
Medium CVE-2025-62843 QuRouter Mar 20, 2026

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 FIRST EPSS score.
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-2025-68403 is "Inadequate Steps to Confirm Vulnerability in QuRouter", rated Medium. It affects QuRouter (QNAP Systems Inc.); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 4.6 describes technical severity. 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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