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ASUS Router CVE-2026-11851

| EUVDEUVD-2026-44584 MEDIUM
SQL Injection (CWE-89)
2026-07-15 ASUS GHSA-f2xq-6hc9-3p2f
5.9
CVSS 4.0 · Vendor: ASUS
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Severity by source

Vendor (ASUS) PRIMARY
5.9 MEDIUM
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/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
vuln.today AI
4.4 MEDIUM

Network-accessible management interface requires admin authentication (PR:H) and active validation bypass (AC:H); impact is confidentiality-only with no scope change.

3.1 AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
4.0 AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (ASUS).

CVSS VectorVendor: ASUS

CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/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
Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
X

Lifecycle Timeline

1
Analysis Generated
Jul 15, 2026 - 02:31 vuln.today

DescriptionCVE.org

Improper Neutralization of Special Elements used in an SQL Command ("SQL Injection") in the web management interface of certain ASUS router models allows a remote authenticated user to disclose confidential information via a crafted request that bypasses existing input validation Refer to the ' Security Update for ASUS Router Firmware ' section on the ASUS Security Advisory for more information.

AnalysisAI

SQL injection in the web management interface of multiple ASUS router models enables a remotely authenticated, high-privilege user to exfiltrate confidential information by sending crafted requests that bypass the router's existing input validation. The vulnerability is limited to read-only data disclosure (no integrity or availability impact) and requires prior administrative authentication, significantly constraining real-world exploitability. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Obtain or compromise admin credentials
Delivery
Authenticate to ASUS router web management interface
Exploit
Craft HTTP request with SQL injection payload bypassing input validation
Execution
Trigger malformed SQL query in router backend
Impact
Extract confidential data from router database

Vulnerability AssessmentAI

Exploitation Exploitation requires an active, authenticated session with high-privilege (administrator-level) access to the ASUS router web management interface - PR:H in the CVSS 4.0 vector confirms this. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Real-world risk is moderate-to-low despite the high confidentiality impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker who has acquired high-privilege (administrator-level) credentials to an ASUS router - through password reuse, phishing, brute-force of a weak admin password, or a separate credential compromise - logs into the web management interface and submits a specially crafted HTTP request containing SQL metacharacters engineered to bypass the router's existing input filters. The malformed query causes the backend database to return sensitive stored data - potentially including VPN pre-shared keys, stored credentials, DDNS credentials, or internal network configuration - which is returned in the HTTP response. …
Remediation Apply the firmware updates identified in the ASUS Security Advisory ('Security Update for ASUS Router Firmware' section) at https://www.asus.com/security-advisory/ - this is the only confirmed fix, and exact patched firmware versions must be obtained directly from ASUS since no specific version number is available in current source data. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-11851 vulnerability details – vuln.today

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