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CVE-2023-1257

HIGH
Published 2023-03-07T16:54:21.053Z
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CVSS Score

V3.1
7.6
/10
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.287
Higher than 28.7% of all CVEs

Attack Vector Metrics

Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

MOXA

UC-8580 Series

Affected Versions:

V1.1
MOXA

UC-8540 Series

Affected Versions:

V1.0 to V1.2
MOXA

UC-8410A Series

Affected Versions:

V2.2
MOXA

UC-8200 Series

Affected Versions:

V1.0 to V2.4
MOXA

UC-8100A-ME-T Series

Affected Versions:

V1.0 to V1.1
MOXA

UC-8100 Series

Affected Versions:

V1.2
MOXA

UC-5100 Series

Affected Versions:

V1.2
MOXA

UC-3100 Series

Affected Versions:

V1.2 to V2.0
MOXA

UC-2100 Series

Affected Versions:

V1.3 to V1.5
MOXA

UC-2100-W Series

Affected Versions:

V1.3 to V1.5

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-whp2-gjjf-pvgr

Advisory Details

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.

CVSS Scoring

CVSS Score

5.0

CVSS Vector

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-1257
WEB https://www.cisa.gov/uscert/ics/advisories/icsa-22-333-04

Advisory provided by GitHub Security Advisory Database. Published: July 6, 2023, Modified: April 4, 2024

References

https://www.cisa.gov/uscert/ics/advisories/icsa-22-333-04
Published: 2023-03-07T16:54:21.053Z
Last Modified: 2025-01-16T21:55:20.265Z
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