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GL.iNet GL-MT3000 EUVDEUVD-2026-52262

| CVE-2026-18598 HIGH
Command Injection (CWE-77)
2026-08-03 VulDB GHSA-35v2-77rf-53pc
Command Injection Gl Mt3000
7.4
CVSS 4.0 · Vendor: VulDB
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Severity by source

Vendor (VulDB) PRIMARY
7.4 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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
vuln.today AI
8.8 HIGH

Network-reachable RPC requires valid credentials (PR:L); no confirmed scope change to downstream systems justifies S:U; full C/I/A on the vulnerable device reflects OS command execution.

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

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

4
Re-analysis Queued
Aug 03, 2026 - 13:22 vuln.today
cvss_changed
CVSS changed
Aug 03, 2026 - 13:22 NVD
8.7 (HIGH) 7.4 (HIGH)
Analysis Generated
Aug 03, 2026 - 13:22 vuln.today
CVE Published
Aug 03, 2026 - 11:30 cve.org
HIGH 7.4

DescriptionCVE.org

A vulnerability was detected in GL.iNet GL-MT3000 up to 4.4.5. The affected element is the function logread.get_system_log of the file /usr/lib/oui-httpd/rpc/logread of the component Logread Lua RPC plugin. The manipulation of the argument module results in command injection. The attack can be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.

AnalysisAI

Remote command injection in GL.iNet GL-MT3000 router firmware (versions 4.4.0-4.4.5) allows an authenticated network attacker to execute arbitrary OS commands by manipulating the module argument of the logread.get_system_log RPC function in the Logread Lua plugin. The vendor confirmed the vulnerability following coordinated disclosure, and a public proof-of-concept exploit is available on GitHub. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Obtain GL-MT3000 credentials (default/brute-force)
Delivery
Send crafted HTTP RPC request to logread endpoint
Exploit
Inject shell metacharacters in module argument
Execution
Trigger unsanitized command execution
Impact
Achieve full root shell on device
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Vulnerability AssessmentAI

Exploitation The attacker must hold valid credentials for the GL-MT3000 management interface, satisfying the PR:L requirement in the CVSS 4.0 vector - unauthenticated exploitation is not supported by available data. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 8.7 (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H) reflects high impact but requires authenticated access (PR:L), which moderates the practical attack surface compared to unauthenticated flaws. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker with valid credentials to the GL-MT3000 web management interface - obtained through credential stuffing, default password use, or network sniffing - sends a crafted HTTP RPC request to the `/usr/lib/oui-httpd/rpc/logread` endpoint with a malicious `module` argument containing shell metacharacters. The unsanitized argument is interpolated directly into a shell command, causing arbitrary code to execute on the device, likely as root given OpenWrt conventions. …
Remediation No vendor-released patch has been identified at time of analysis; a patched firmware version was not confirmed in the available data. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, identify all GL-MT3000 routers running firmware versions 4.4.0-4.4.5; note that publicly available exploit code exists for this vulnerability, significantly shortening the remediation window. …

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EUVD-2026-52262 vulnerability details – vuln.today
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