CVE-2026-9266

Disk decryption via unprotected TPM communications

Published Jun 12, 2026 · Updated Jun 12, 2026

Missing cryptographic protection in Moxa UC-1200A Series MIL3 Secure 1.4 and earlier allows physically proximate attackers to recover the LUKS key. An omitted authorization-session setting leaves TPM2 parameter encryption ineffective, exposing plaintext key material on SPI-bus communications. Exploitation requires opening the device and attaching capture equipment to the SPI bus, after which the encrypted disk volume is fully compromised.

CVSS severity7.0
High
EPSS probability0.07%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Missing cryptographic protection in Moxa UC-1200A Series MIL3 Secure 1.4 and earlier allows physically proximate attackers to recover the LUKS key. An omitted authorization-session setting leaves TPM2 parameter encryption ineffective, exposing plaintext key material on SPI-bus communications. Exploitation requires opening the device and attaching capture equipment to the SPI bus, after which the encrypted disk volume is fully compromised.

The record

CVE
CVE-2026-9266
Published
Jun 12, 2026
Updated
Jun 12, 2026
Vendor
Moxa
Product
UC-1200A Series
Classifications
CWE-325, CAPEC-699
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.0 <=1.4

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Moxa · UC-1200A Seriesversion=1.0 <=1.4

Published CVSS scores

7.0MoxaCVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-325Missing Cryptographic Step
CAPEC-699Eavesdropping on a Monitor

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo