8.2
HIGH CVSS 4.0
CVE-2026-35088
Inadequate Encryption Strength in Slican telephone exchanges
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.

INFO

Published Date :

Oct. 15, 2026, 9:17 a.m.

Last Modified :

Oct. 15, 2026, 9:17 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-35088 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Slican ipx
2 Slican cct-1668
3 Slican mac-6400
4 Slican cxs-0424
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 HIGH 4bb8329e-dd38-46c1-aafb-9bf32bcb93c6
CVSS 4.0 HIGH [email protected]
Solution
Hardcoded secret keys allow decryption. Update software or contact vendor for hardware upgrade options.
  • Update IPx series to version 6.62.0100 or later.
  • Contact vendor for end-of-life hardware upgrade options.
  • Replace affected end-of-life telephone exchanges.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-35088.

URL Resource
https://cert.pl/posts/2026/10/CVE-2026-35088
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-35088 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-35088 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-35088 vulnerability anywhere in the article.

  • cert.pl
Vulnerabilities in Slican telephone exchanges

Vulnerabilities in Slican telephone exchanges CVE ID CVE-2026-35088 Publication date 15 October 2026 Vendor Slican Product IPx, CCT-1668, MAC-6400, CXS-0424 Vulnerable versions All before 6.62.0100 (I ... Read more

Published Date: Oct 15, 2026 (0 minutes ago)

The following table lists the changes that have been made to the CVE-2026-35088 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Oct. 15, 2026

    Action Type Old Value New Value
    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.
    Added CVSS V4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-326
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/35xxx/CVE-2026-35088.json">CVE-2026-35088</a>
    Added Reference https://cert.pl/posts/2026/10/CVE-2026-35088
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.