CVE-2023-1257

CVE-2023-1257

MEDIUM
6.8
CVSS Score
Published: March 7, 2023 at 04:54 PM UTC
Updated: June 17, 2026 at 05:27 AM UTC
118 products affected across 1 vendorUc 8220-t Lx Eu S FirmwareUc 8220-t Lx FirmwareUc 8220-t Lx Us S Firmware

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

An attacker with physical access to the affected Moxa UC Series devices can initiate a restart of the device and gain access to its BIOS. Command line options can then be altered, allowing the attacker to access the terminal. From the terminal, the attacker can modify the device’s authentication files to create a new user and gain full access to the system.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

1.3 ≤ v ≤ 1.5
moxa-uc-2101-lx (same device)
1.3 ≤ v ≤ 1.5
moxa-uc-2102-lx (same device)
1.3 ≤ v ≤ 1.5
moxa-uc-2102-t-lx (same device)
1.3 ≤ v ≤ 1.5
moxa-uc-2104-lx (same device)
1.3 ≤ v ≤ 1.5
moxa-uc-2111-lx (same device)
1.3 ≤ v ≤ 1.5
moxa-uc-2112-lx (same device)
1.3 ≤ v ≤ 1.5
moxa-uc-2114-t-lx (same device)
1.3 ≤ v ≤ 1.5
moxa-uc-2116-t-lx (same device)
1.2 ≤ v ≤ 2.0
moxa-uc-3101-t-ap-lx (same device)
1.2 ≤ v ≤ 2.0
moxa-uc-3101-t-eu-lx (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Third Party AdvisoryUS Government Resource
https://www.cisa.gov/uscert/ics/advisories/icsa-22-333-04

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
PHYSICAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED

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