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CVE-2026-26792

Gl-inet Ar300m16 Firmware command injection

9.8 CRITICALPublic exploitEPSS 3.99%
  1. Published12 Mar 2026

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Gl-inet Ar300m16 Firmware4.3.11

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2026-26792 being actively exploited?

CVE-2026-26792 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 3.99%.

How severe is CVE-2026-26792?

CVE-2026-26792 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 3.99% probability of exploitation.

Which products are affected by CVE-2026-26792?

Affected products include Gl-inet Ar300m16 Firmware.

How do I fix CVE-2026-26792?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-26792 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.