What’s Vulnerable › Vulnerabilities

CVE-2023-31473

• Severity: medium (CVSS 4.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-05-11 · updated 2026-06-17
• Weakness: CWE-77

Description

An issue was discovered on GL.iNet devices before 3.216. There is an arbitrary file write in which an empty file can be created anywhere on the filesystem. This is caused by a command injection vulnerability with a filter applied. Through the software installation feature, it is possible to inject arbitrary parameters in a request to cause opkg to read an arbitrary file name while using root privileges. The -f option can be used with a configuration file.

Affected products

• GL-iNet Gl-A1300 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Ap1300 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Ap1300Lte Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Ar300M Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Ar750 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Ar750S Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Ax1800 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Axt1800 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-B1300 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-B2200 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-E750 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Mifi Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Mt1300 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Mt2500 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Mt2500A Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Mt3000 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Mt300N-V2 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Mv1000 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Mv1000W Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-S10 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-S1300 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-S200 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-S20 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Sf1200 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Sft1200 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-Usb150 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-X1200 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-X3000 Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-X300B Firmware: before 3.216 — fixed in 3.216
• GL-iNet Gl-X750 Firmware: before 3.216 — fixed in 3.216

How to fix

Upgrade to a fixed version: GL-iNet Gl-A1300 Firmware 3.216; GL-iNet Gl-Ap1300 Firmware 3.216; GL-iNet Gl-Ap1300Lte Firmware 3.216; GL-iNet Gl-Ar300M Firmware 3.216; GL-iNet Gl-Ar750 Firmware 3.216; GL-iNet Gl-Ar750S Firmware 3.216; GL-iNet Gl-Ax1800 Firmware 3.216; GL-iNet Gl-Axt1800 Firmware 3.216; GL-iNet Gl-B1300 Firmware 3.216; GL-iNet Gl-B2200 Firmware 3.216; GL-iNet Gl-E750 Firmware 3.216; GL-iNet Gl-Mifi Firmware 3.216. Check the vendor advisory for mitigations.

References

• https://github.com/gl-inet/CVE-issues/blob/main/3.215/Arbitrary_File_Read.md
• https://www.gl-inet.com
• https://github.com/gl-inet/CVE-issues/blob/main/3.215/Arbitrary_File_Read.md
• https://www.gl-inet.com

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