Slican IPx/CCT-1668/MAC-6400/CXS-0424 weak credentials

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Slican IPx, CCT-1668, MAC-6400 and CXS-0424. This issue affects some unknown processing. Executing a manipulation can lead to weak credentials. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is tracked as CVE-2026-35089. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Slican IPx, CCT-1668, MAC-6400 and CXS-0424 (affected version not known). It has been declared as problematic. This vulnerability affects some unknown functionality. The manipulation with an unknown input leads to a weak credentials vulnerability. The CWE definition for the vulnerability is CWE-1391. The product uses weak credentials (such as a default key or hard-coded password) that can be calculated, derived, reused, or guessed by an attacker. As an impact it is known to affect confidentiality. CVE summarizes:

In Slican telephone exchanges secure key is generated in a predictable manner using properties of the telephone exchange which can be obtained without authentication. An unauthenticated attacker can deduce the secure key and obtain admin credentials. This issue was fixed in versions below: - IPx series: version 6.61.0040 - CCT-1668: version 6.56.0430 - MAC-6400: version 6.56.0430 - CXS-0424: version 6.30.0510 The issue STILL EXISTS in End-Of-Life telephone exchanges in versions 4.xx and below: - CCT-1668 (CCT1CPU) - MAC-6400 - CXS-0424 These products were discontinued in 2011 and 2012 and and will not receive updates. These products require a hardware update in order to receive a software update. The vendor recommends that users of these devices contact the their service department directly to determine the options for upgrading.

The weakness was disclosed by Grupa Żn. The advisory is shared for download at cert.pl. This vulnerability was named CVE-2026-35089 since 04/01/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

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Support

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: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Weak credentials
CWE: CWE-1391
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/01/2026 CVE reserved
05/27/2026 +56 days Advisory disclosed
05/27/2026 +0 days VulDB entry created
05/27/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: cert.pl
Researcher: Grupa Żn
Status: Confirmed

CVE: CVE-2026-35089 (🔒)
GCVE (CVE): GCVE-0-2026-35089
GCVE (VulDB): GCVE-100-366172

Entryinfo

Created: 05/27/2026 17:03
Changes: 05/27/2026 17:03 (65)
Complete: 🔍
Cache ID: 216::103

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