CVE-2026-11450
Published: 07 June 2026
Summary
CVE-2026-11450 is a medium-severity Injection (CWE-74) vulnerability. Its CVSS base score is 6.9 (Medium).
Operationally, ranked in the top 33.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
A vulnerability identified as CVE-2026-11450 exists in the GL.iNet GL-MT3000 firmware version 4.4.5. It resides in the dlopen function within the /usr/lib/oui-httpd/rpc/ library of the Path Normalization Handler component. The flaw stems from improper handling of the dev_name argument, enabling command injection as classified under CWE-74 and CWE-77. The issue can be triggered remotely without authentication and carries a CVSS 4.0 score of 6.9.
An unauthenticated remote attacker can supply a crafted dev_name value to the affected RPC endpoint, resulting in arbitrary command execution on the device. Successful exploitation grants limited control over confidentiality, integrity, and availability of the target system, though no special user interaction or privileges are required.
The vendor states that upgrading to firmware version 4.7 resolves the issue by introducing method-level validation at the HTTP /rpc layer. Specifically, nas-web.eject_disk is removed from the whitelist of allowed methods, causing direct calls through the default /rpc endpoint to return "Invalid params" and blocking access to subsequent dangerous functions. Public references, including a detailed GitHub report and Vuldb entries, document the same upgrade recommendation.
The associated EPSS score remains flat at 0.0131 with no material increase observed.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-34981
Vulnerability details
A vulnerability was detected in GL.iNet GL-MT3000 4.4.5. This affects the function dlopen in the library /usr/lib/oui-httpd/rpc/ of the component Path Normalization Handler. Performing a manipulation of the argument dev_name results in command injection. It is possible to initiate the…
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attack remotely. Upgrading to version 4.7 mitigates this issue. It is advisable to upgrade the affected component. The vendor confirms: " From version 4.7 onward, we have enabled method‑level validation at the HTTP /rpc layer. nas‑web.eject_disk is no longer in the whitelist of allowed methods. Consequently, directly calling eject_disk through the default /rpc endpoint returns Invalid params, preventing entry into subsequent dangerous functions and blocking the remote exploit chain described in the report."
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Developer assessments and testing (including injection-focused techniques) identify improper neutralization of special elements, and the verifiable flaw remediation corrects them pre-deployment.
Identifies indicators of injection attacks (command, SQL, LDAP, etc.) via anomaly and attack monitoring.