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Vulnerability record · CVE-2026-32290 · published 17 March 2026

CVE-2026-32290: Gl-inet comet gl-rm1 firmware insufficient verification of data authenticity vulnerability

Gl Inet · Comet Gl Rm1 Firmware

The GL-iNet Comet (GL-RM1) KVM before version 1.8.2 does not sufficiently verify the authenticity of uploaded firmware files. An attacker-in-the-middle or a compromised update server could modify the firmware and the corresponding MD5 hash to pass verification.

7.0 CVSS 4.0 High EPSS 0.13% · top 97.9% CWE-345 · Insufficient verification of data authenticity
7.0CVSS 4.0 base score
0.13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

The GL-iNet Comet (GL-RM1) KVM before version 1.8.2 does not sufficiently verify the authenticity of uploaded firmware files. An attacker-in-the-middle or a compromised update server could modify the firmware and the corresponding MD5 hash to pass verification.

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://dl.gl-inet.com/release/kvm/release/RM1/1.8.2 Release Notes
https://eclypsium.com/blog/your-kvm-is-the-weak-link-how-30-dollar-devices-can-own-your-entire-network/ Third Party Advisory
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-26-076-01.json Broken Link
https://www.cve.org/CVERecord?id=CVE-2026-32290 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2026-32292Gl-inet comet gl-rm1 firmware improper restriction of authentication attempts vulnerabilityThe GL-iNet Comet (GL-RM1) KVM web interface does not limit login requests, enabling brute-force attempts to guess credentials.EPSS 0.55%7.0CVE-2026-32291Gl-inet comet gl-rm1 firmware missing authentication for critical function vulnerabilityThe GL-iNet Comet (GL-RM1) KVM before 1.8.2 does not require authentication on the UART serial console. This attack requires physically opening the d…EPSS 0.34%6.3CVE-2026-32293Gl-inet comet gl-rm1 firmware improper certificate validation vulnerabilityThe GL-iNet Comet (GL-RM1) KVM connects to a GL-iNet site during boot-up to provision client and CA certificates. The GL-RM1 does not verify certific…EPSS 0.32%7.8CVE-2023-38831WinRAR ZIP archive spoofing leads to arbitrary code executionWinRAR before 6.23 mishandles ZIP archives that contain a benign file and a folder with the same name, causing the folder's contents to be processed …KEVEPSS 100%analysed9.8CVE-2022-26871Trend Micro Apex Central unauthenticated arbitrary file uploadTrend Micro Apex Central (and Apex One) contains an arbitrary file upload flaw caused by insufficient verification of data authenticity (CWE-345). An…KEVEPSS 19%analysed

Source: NIST National Vulnerability Database (record CVE-2026-32290), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.