CVE-2026-11449Public exploitNetwork attack vector

Authenticated root command execution via unrestricted JSON-RPC dispatch

Published Jun 7, 2026 · Updated Jun 7, 2026

Command injection in GL.iNet Beryl AX firmware 4.4.5 allows remote authenticated users to execute arbitrary commands as root. The rpc_sys handler clones all luci.sys methods without an allowlist, letting JSON-RPC dispatch attacker input to luci.util.exec and io.popen. Access requires the router's root password and a valid session; successful requests run through /bin/sh and return command output.

CVSS severity5.3
Medium
EPSS probability1.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in GL.iNet Beryl AX firmware 4.4.5 allows remote authenticated users to execute arbitrary commands as root. The rpc_sys handler clones all luci.sys methods without an allowlist, letting JSON-RPC dispatch attacker input to luci.util.exec and io.popen. Access requires the router's root password and a valid session; successful requests run through /bin/sh and return command output.

The record

CVE
CVE-2026-11449
Published
Jun 7, 2026
Updated
Jun 7, 2026
Vendor
GL.iNet
Product
Beryl AX (GL-MT3000)
Classifications
CWE-74, CWE-77, T1059.004, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.4.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GL.iNet · Beryl AX (GL-MT3000)version=4.4.5

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.004Unix and Linux Shell
T1210Exploitation of Remote Services

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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