CVE-2023-50706

Improper Access Control in EFACEC UC 500E

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Published Dec 19, 2023 CVSS 3.1 · 4.1 Medium EPSS < 1% KEV · Not listed

Description

A user without administrator permissions with access to the UC500 windows system could perform a memory dump of the running processes and extract clear credentials or valid session tokens.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

EFACEC

UC 500E

unaffected

Version	Status	Constraints
`version 10.1.0`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:efacec:uc_500e_firmware:10.1.0:*:*:*:*:*:*:*

cpe:2.3:h:efacec:uc_500e:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

Vendor Solution

EFACEC has released UC 500E version 10.1.1. For more information, contact EFACEC support https://www.efacec.pt/en/contacts/ .

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2023-55483	A user without administrator permissions with access to the UC500 windows system could perform a memory dump of the running processes and extract clear credentials or valid session tokens.

Metrics

No CVSS v4.0

Attack Vector Physical

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.243% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://www.cisa.gov/news-events/ics-advisories/icsa-23-353-03

History

Nov 10, 2026 9:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Efacec Uc 500e Uc 500e Firmware

Weaknesses

Sources

CVE record Updated: Feb 25, 2026, 4:34 PM

Status: PUBLISHED
Assigner: icscert
Published: Dec 19, 2023, 11:47 PM
Updated: Feb 25, 2026, 4:34 PM
Reserved: Dec 11, 2023, 4:37 PM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 10:16 PM

Updated: Aug 2, 2024, 10:16 PM

NVD Updated: Jun 17, 2026, 6:39 AM

Status: Modified
Published: Dec 20, 2023, 12:15 AM
Modified: Jun 17, 2026, 6:39 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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