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VulnerabilityPublished

CVE-2026-35087: Slican IPx · Authentication Bypass Using an Alternate Path or Channel

Affects Slican IPxSource CVE Database V5

0

Not known to be exploited · CVSS 9.3 Critical : upgrade to 6.61.0040 as a priority.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 4.0 base score
9.3Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 6.61.0040, 6.56.0430, 6.30.0510 +1
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
SlicanIPxAffected
  • <6.61.0040
Fixed in
  • 6.61.0040
SlicanCCT-1668Affected
  • <6.56.0430
Fixed in
  • 6.56.0430
SlicanMAC-6400Affected
  • <6.56.0430
Fixed in
  • 6.56.0430
SlicanCXS-0424Affected
  • <6.30.0510
Fixed in
  • 6.30.0510
SlicanNCPAffected
  • <1.24.0250
Fixed in
  • 1.24.0250

AI-suggested

Fixed versions are available for supported Slican products as listed: NCP version 1.24.0250, IPx series version 6.61.0040, CCT-1668 version 6.56.0430, MAC-6400 version 6.56.0430, and CXS-0424 version 6.30.0510. Users should upgrade to these versions to remediate the vulnerability. For End-Of-Life devices (CCT-1668, MAC-6400, CXS-0424 versions 4.xx and below), which are no longer supported and require hardware upgrades for software updates, the vendor recommends contacting their service department to explore upgrade options. Patch status for these legacy devices is effectively no longer available. No other mitigations or vendor advisories indicating alternative mitigations were provided.

Description

Slican telephone exchanges allow administrative protocol authentication bypass. An attacker can bypass the need to enter login credentials by executing the appropriate command. This issue was fixed in versions below: - NCP: version 1.24.0250 - 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.

References

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