PT-2026-43699 · Slican · Cct-1668+4

Grupa Żn · Publicado 2026-05-27 · Atualizado 2026-05-27 · CVE-2026-35087

Mitre

CVSS v4.0

9.3

Crítica

Vetor base

AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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.

Correção

Authentication Bypass Using an Alternate Path or Channel

Enumeração de Fraquezas

CWE-288

Identificadores relacionados

CVE-2026-35087

Produtos afetados

Cct-1668

Cxs-0424

Ipx

Mac-6400

Ncp

Referências · 3

• https://twitter.com/f1tym1/status/2059616719404970170 · Publicação no Twitter
• https://cert.pl/posts/2026/05/CVE-2026-35087 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-35087 · Nota de Segurança