CVE-2026-19983: OS Command Injection in GL.iNet A1300
CVE-2026-19983 is an OS command injection vulnerability in the NAS Command Service component of GL.iNet devices including A1300, AX1800, AXT1800, MT2500, MT3000, MT6000, X3000, and XE3000 running firmware version 4.8.x. The vulnerability arises from unsafe processing of the /usr/bin/gl_nas_sys file, allowing remote attackers to execute arbitrary OS commands. The vendor has confirmed the existence of this vulnerability and recommends upgrading to version 4.9.0 to address the issue.
AI Analysis
Technical Summary
This vulnerability affects GL.iNet devices running firmware versions from 4.8.0 up to but not including 4.9.0. It involves an OS command injection flaw in the NAS Command Service component, specifically related to the processing of the /usr/bin/gl_nas_sys file. Remote attackers can exploit this flaw to execute arbitrary operating system commands. The vendor has acknowledged the vulnerability and advises upgrading to version 4.9.0, which contains the fix.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary OS commands on affected GL.iNet devices, potentially leading to unauthorized control or disruption of the device. The CVSS 4.0 base score is 6.9 (medium severity), indicating a significant but not critical risk. There are no known exploits in the wild at this time.
Mitigation Recommendations
The vendor recommends upgrading affected devices to firmware version 4.9.0, which addresses this OS command injection vulnerability. No other mitigation or temporary workaround is specified. Users should apply the official upgrade promptly to remediate the issue.
CVE-2026-19983: OS Command Injection in GL.iNet A1300
Description
CVE-2026-19983 is an OS command injection vulnerability in the NAS Command Service component of GL.iNet devices including A1300, AX1800, AXT1800, MT2500, MT3000, MT6000, X3000, and XE3000 running firmware version 4.8.x. The vulnerability arises from unsafe processing of the /usr/bin/gl_nas_sys file, allowing remote attackers to execute arbitrary OS commands. The vendor has confirmed the existence of this vulnerability and recommends upgrading to version 4.9.0 to address the issue.
CVSS v4.0
Score 6.9medium
Affected software
GL.iNet
A1300
GL.iNet
AX1800
GL.iNet
AXT1800
GL.iNet
MT2500
GL.iNet
MT3000
GL.iNet
MT6000
GL.iNet
X3000
GL.iNet
XE3000
cpe:2.3:a:gl.inet:a1300:*:*:*:*:*:*:*:*cpe:2.3:a:gl.inet:ax1800:*:*:*:*:*:*:*:*cpe:2.3:a:gl.inet:axt1800:*:*:*:*:*:*:*:*cpe:2.3:a:gl.inet:mt2500:*:*:*:*:*:*:*:*cpe:2.3:a:gl.inet:mt3000:*:*:*:*:*:*:*:*cpe:2.3:a:gl.inet:mt6000:*:*:*:*:*:*:*:*AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects GL.iNet devices running firmware versions from 4.8.0 up to but not including 4.9.0. It involves an OS command injection flaw in the NAS Command Service component, specifically related to the processing of the /usr/bin/gl_nas_sys file. Remote attackers can exploit this flaw to execute arbitrary operating system commands. The vendor has acknowledged the vulnerability and advises upgrading to version 4.9.0, which contains the fix.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary OS commands on affected GL.iNet devices, potentially leading to unauthorized control or disruption of the device. The CVSS 4.0 base score is 6.9 (medium severity), indicating a significant but not critical risk. There are no known exploits in the wild at this time.
Mitigation Recommendations
The vendor recommends upgrading affected devices to firmware version 4.9.0, which addresses this OS command injection vulnerability. No other mitigation or temporary workaround is specified. Users should apply the official upgrade promptly to remediate the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-16T13:38:32.594Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a82948abf8831d53941b7f6
Added to database: 08/17/2026, 04:56:42 UTC
Last enriched: 08/24/2026, 13:30:10 UTC
Last updated: 10/01/2026, 14:51:04 UTC
Views: 65
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