What’s Vulnerable › Vulnerabilities

CVE-2026-19983: GL.iNet XE3000 NAS Command Service gl_nas_sys os command injection

• Severity: high (CVSS 8.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-17 · updated 2026-08-20
• Weakness: CWE-77

Description

A vulnerability was detected in GL.iNet A1300, AX1800, AXT1800, MT2500, MT3000, MT6000, X3000 and XE3000 4.8.x. This issue affects some unknown processing of the file /usr/bin/gl_nas_sys of the component NAS Command Service. The manipulation results in os command injection. The attack may be launched remotely. Upgrading to version 4.9.0 is capable of addressing this issue. It is suggested to upgrade the affected component. The vendor explains: "After our investigation, we have confirmed that the vulnerability described (...) does indeed exist."

Affected products

• GL.iNet A1300: 4.8.*
• GL.iNet AX1800: 4.8.*
• GL.iNet AXT1800: 4.8.*
• GL.iNet MT2500: 4.8.*
• GL.iNet MT3000: 4.8.*
• GL.iNet MT6000: 4.8.*
• GL.iNet X3000: 4.8.*
• GL.iNet XE3000: 4.8.*

References

• https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/NAS%20Host-header%20bypass%20to%20unauthenticated%20root%20RCE.md
• https://vuldb.com/cve/CVE-2026-19983
• https://vuldb.com/submit/873919
• https://vuldb.com/vuln/391165
• https://vuldb.com/vuln/391165/cti

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