EFACEC QC 60/QC 90/QC 120 8 MQTT Communications Protocol cleartext transmission

CVSS Meta Temp Score
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CTI Interest Score
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3.1$0-$5k0.00

Summaryinfo

A vulnerability was found in EFACEC QC 60, QC 90 and QC 120 8. It has been declared as problematic. This issue affects some unknown processing of the component MQTT Communications Protocol Handler. Such manipulation leads to cleartext transmission. This vulnerability is documented as CVE-2026-22535. The attack requires being on the local network. There is not any exploit available.

Detailsinfo

A vulnerability was found in EFACEC QC 60, QC 90 and QC 120 8 and classified as problematic. Affected by this issue is some unknown processing of the component MQTT Communications Protocol Handler. The manipulation with an unknown input leads to a cleartext transmission vulnerability. Using CWE to declare the problem leads to CWE-319. The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. Impacted is confidentiality. CVE summarizes:

An attacker with the ability to interact through the network and with access credentials, could, thanks to the unsecured (unencrypted) MQTT communications protocol, write on the server topics of the board that controls the MQTT communications

The weakness was released by Aarón Flecha Menéndez, Iván Alonso Álvarez and Víctor Bello Cuevas. This vulnerability is handled as CVE-2026-22535 since 01/07/2026. The exploitation is known to be difficult. Access to the local network is required for this attack to succeed. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1040 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.1

VulDB Base Score: 3.1
VulDB Temp Score: 3.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cleartext transmission
CWE: CWE-319 / CWE-310
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

01/07/2026 Advisory disclosed
01/07/2026 +0 days CVE reserved
01/07/2026 +0 days VulDB entry created
01/07/2026 +0 days VulDB entry last update

Sourcesinfo

Researcher: Aarón Flecha Menéndez, Iván Alonso Álvarez, Víctor Bello Cuevas
Status: Not defined

CVE: CVE-2026-22535 (🔒)
GCVE (CVE): GCVE-0-2026-22535
GCVE (VulDB): GCVE-100-339926

Entryinfo

Created: 01/07/2026 22:20
Changes: 01/07/2026 22:20 (65)
Complete: 🔍
Cache ID: 216::103

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