CVE-2026-0715

Physical service interruption via exposed bootloader password

Published Feb 5, 2026 · Updated Feb 5, 2026

Insufficiently protected bootloader credentials in Moxa UC-1200A Series 1.0 through 1.4 allow physically proximate attackers to interrupt service. The device-unique password printed on the device unlocks the bootloader menu over the serial interface, where a valid Moxa-signed image can be reflashed. Physical possession and serial access are required; signature enforcement blocks malicious firmware and arbitrary code, limiting the consequence to temporary downtime.

CVSS severity7.0
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficiently protected bootloader credentials in Moxa UC-1200A Series 1.0 through 1.4 allow physically proximate attackers to interrupt service. The device-unique password printed on the device unlocks the bootloader menu over the serial interface, where a valid Moxa-signed image can be reflashed. Physical possession and serial access are required; signature enforcement blocks malicious firmware and arbitrary code, limiting the consequence to temporary downtime.

The record

CVE
CVE-2026-0715
Published
Feb 5, 2026
Updated
Feb 5, 2026
Vendor
Moxa
Product
UC-1200A Series
Classifications
CWE-522, CAPEC-102, T1499
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 5, 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=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

6.8NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.0Moxa Inc.CVSS: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-522Insufficiently Protected Credentials
CAPEC-102Session Sidejacking
T1499Endpoint Denial of Service

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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