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CVE-2026-18616

GL-iNet GL-MT3000 command injection

9.8 CRITICALEPSS 3.62%
  1. Published3 Aug 2026

Description

A vulnerability was identified in GL-iNet GL-MT3000 up to 4.4.5. The impacted element is the function server.set_peer of the file /cgi-bin/glc of the component wg-server.so Native Plugin. The manipulation of the argument public_key leads to command injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.

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

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-2026-18616 being actively exploited?

CVE-2026-18616 is not in the CISA KEV catalog. Its EPSS exploit probability is 3.62%.

How severe is CVE-2026-18616?

CVE-2026-18616 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 3.62% probability of exploitation.

How do I fix CVE-2026-18616?

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-2026-18616 against the real software inventory on every managed device, every day. 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.