CVE-2026-32290

Arbitrary firmware installation via self-contained MD5 hash

Published Mar 17, 2026 · Updated Mar 17, 2026

Firmware authentication failure in GL.iNet Comet (GL-RM1) before 1.8.2 allows attackers to install modified firmware. The updater trusts only an MD5 digest stored in the final 16 bytes of the same image, so modified content and a recomputed digest are accepted without a vendor signature. Exploitation requires access to the web interface or control of the update delivery path and grants persistent control through attacker-supplied firmware.

CVSS severity7.0
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Firmware authentication failure in GL.iNet Comet (GL-RM1) before 1.8.2 allows attackers to install modified firmware. The updater trusts only an MD5 digest stored in the final 16 bytes of the same image, so modified content and a recomputed digest are accepted without a vendor signature. Exploitation requires access to the web interface or control of the update delivery path and grants persistent control through attacker-supplied firmware.

The record

CVE
CVE-2026-32290
Published
Mar 17, 2026
Updated
Mar 17, 2026
Vendor
GL.iNet
Product
Comet (GL-RM1)
Classifications
CWE-345, T1601.001
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Mar 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <*

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

GL.iNet · Comet (GL-RM1)version=0 <*

Published CVSS scores

4.7CISA CNACVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
7.0CISA CNACVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-345Insufficient Verification of Data Authenticity
T1601.001Modify System Image

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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