VDB-358019 · CVE-2026-6284 · icsa-26-106-02

Horner Automation Cscape/XL4/XL7 PLC weak password

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.6	$0-$5k	5.83-

Summaryinfo

A vulnerability marked as critical has been reported in Horner Automation Cscape, XL4 and XL7 PLC. This affects an unknown part. The manipulation leads to weak password. This vulnerability is traded as CVE-2026-6284. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Horner Automation Cscape, XL4 and XL7 PLC (the affected version is unknown). It has been rated as problematic. This issue affects an unknown code. The manipulation with an unknown input leads to a weak password vulnerability. Using CWE to declare the problem leads to CWE-521. The product does not require that users should have strong passwords, which makes it easier for attackers to compromise user accounts. Impacted is confidentiality.

It is possible to read the advisory at cisa.gov. The identification of this vulnerability is CVE-2026-6284. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1552 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-23442). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Automation Software

Vendor

Horner Automation

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Weak password
CWE: CWE-521
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/17/2026 Advisory disclosed
04/17/2026 +0 days VulDB entry created
04/17/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: icsa-26-106-02
Status: Confirmed

CVE: CVE-2026-6284 (🔒)
GCVE (CVE): GCVE-0-2026-6284
GCVE (VulDB): GCVE-100-358019
EUVD: 🔒

Entryinfo

Created: 04/17/2026 06:55
Updated: 04/17/2026 21:41
Changes: 04/17/2026 06:55 (51), 04/17/2026 21:41 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.