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TI-2026-21386 Aliases CVE-2026-26792GHSA-x28p-58gf-rh8c

GL-iNet GL-AR300M16 v4.3.11 was discovered to contain multiple command injection…

Priority MEDIUM 55CWE-77Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-77.

Summary

GL-iNet GL-AR300M16 v4.3.11 was discovered to contain multiple command injection vulnerabilities in the set_upgrade function via the modem_url, target_version, current_version, firmware_upload, hash_type, hash_value, and upgrade_type parameters. These vulnerabilities allow attackers to execute arbitrary commands via a crafted input.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0322 88th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:gl-inet:ar300m16_firmware:4.3.11:*:*:*:*:*:*:*4.3.11VulnerableGL.iNet
cpe:2.3:h:gl-inet:ar300m16:-:*:*:*:*:*:*:*not specified by NVDRunning onGL.iNet
  • cpe:2.3:o:gl-inet:ar300m16_firmware:4.3.11:*:*:*:*:*:*:* Versions 4.3.11 Vulnerable ·GL.iNet
  • cpe:2.3:h:gl-inet:ar300m16:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·GL.iNet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-26792
  2. 2026-10-03 Alias added: GHSA-x28p-58gf-rh8c
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Exploit 1

  • TI-2026-21387 GL-iNet GL-AR300M16 v4.3.11 was discovered to contain a command injection vulnerability… CVSS 3.1CRITICAL 9.8
  • TI-2024-26219 GL-iNet products AR750/AR750S/AR300M/AR300M16/MT300N-V2/B1300/MT1300/SFT1200/X750… CVSS 3.1CRITICAL 9.8
  • TI-2024-30337 An issue was discovered on certain GL-iNet devices, including MT6000, MT3000, MT2500… CVSS 3.1HIGH 8.8
  • TI-2024-30335 An issue was discovered on certain GL-iNet devices, including MT6000, MT3000, MT2500… CVSS 3.1HIGH 8.0
  • TI-2024-26217 GL-iNet products AR750/AR750S/AR300M/AR300M16/MT300N-V2/B1300/MT1300/SFT1200/X750… CVSS 3.1CRITICAL 9.8
  • TI-2024-26218 GL-iNet products AR750/AR750S/AR300M/AR300M16/MT300N-V2/B1300/MT1300/SFT1200/X750… CVSS 3.1CRITICAL 9.8
See all 16 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences