CVE-2026-35088

Inadequate Encryption Strength in Slican telephone exchanges

Published Oct 15, 2026 CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed
Description
Slican telephone exchanges use symmetric encryption for TCP/IP communication. Secret key is hardcoded in multiple binary files. An attacker who has access to these files can decrypt the communication.

This issue was fixed in IPx series version 6.62.0100.

The issue STILL EXISTS in End-Of-Life telephone exchanges:
- 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Slican telephone exchanges use symmetric encryption for TCP/IP communication. Secret key is hardcoded in multiple binary files. An attacker who has access to these files can decrypt the communication. This issue was fixed in IPx series version 6.62.0100. The issue STILL EXISTS in End-Of-Life telephone exchanges: - 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.
Title Inadequate Encryption Strength in Slican telephone exchanges
First Time appeared Slican
Slican cct-1668
Slican cxs-0424
Slican ipx
Slican mac-6400
Weaknesses CWE-326
CPEs cpe:2.3:a:slican:cct-1668:*:*:*:*:*:*:*:*
cpe:2.3:a:slican:cxs-0424:*:*:*:*:*:*:*:*
cpe:2.3:a:slican:ipx:*:*:*:*:*:*:*:*
cpe:2.3:a:slican:mac-6400:*:*:*:*:*:*:*:*
Vendors & Products Slican
Slican cct-1668
Slican cxs-0424
Slican ipx
Slican mac-6400
References
Metrics cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
CERT-PL
Published
Updated
Oct 15, 2026, 1:48 PM
Reserved
Apr 1, 2026, 11:23 AM
Status
Deferred
Published
Oct 15, 2026, 9:17 AM
Modified
Oct 16, 2026, 8:04 PM