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CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2026-76462

Cisco Secure Client Privilege Escalation Vulnerability

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Status
Published
Published
Updated
Assigning organization
cisco

Description

A vulnerability in the interprocess communication (IPC) channel of the Secure Firewall Posture module in Cisco Secure Client could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a series of crafted IPC messages to a local socket. A successful exploit could allow the attacker to perform limited file write operations on the filesystem with SYSTEM or root privileges. Although this vulnerability affects the Secure Firewall Posture module in Cisco Secure Client on Windows, macOS, and Linux operating systems, this vulnerability could be used to obtain full root privileges on macOS and Linux. For that reason Cisco has assigned this security advisory a Security Impact Rating (SIR) of High rather than Medium as the score indicates.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Cisco Cisco Secure Client

Default version status: unknown

  • 4.9.00086affected
  • 4.9.01095affected
  • 4.9.02028affected
  • 4.9.03047affected
  • 4.9.03049affected
  • 4.9.04043affected
  • 4.9.04053affected
  • 4.9.05042affected
  • 4.9.06037affected
  • 4.10.00093affected
  • 4.10.01075affected
  • 4.10.02086affected
  • 4.10.03104affected
  • 4.10.04065affected
  • 4.10.04071affected
  • 4.10.05085affected
  • 4.10.05095affected
  • 5.0.00238affected
  • 4.10.05111affected
  • 5.0.00529affected
  • 5.0.00556affected
  • 4.10.06079affected
  • 5.0.01242affected
  • 4.10.06090affected
  • 5.0.02075affected
  • 4.10.07061affected
  • 5.0.03072affected
  • 4.10.07062affected
  • 5.0.03076affected
  • 5.0.04032affected
  • 4.10.07073affected
  • 5.0.05040affected
  • 5.1.0.136affected
  • 5.1.1.42affected
  • 4.10.08025affected
  • 5.1.2.42affected
  • 4.10.08029affected
  • 5.1.3.62affected
  • 5.1.4.74affected
  • 5.1.5.65affected
  • 5.1.6.103affected
  • 5.1.7.80affected
  • 5.1.8.105affected
  • 5.1.8.122affected
  • 5.1.9.113affected
  • 5.1.10.233affected
  • 5.1.11.388affected
  • 5.1.12.146affected
  • 5.1.13.117affected
  • 5.1.13.177affected
  • 5.1.14.145affected
  • 5.1.15.287affected
  • 5.1.16.194affected
  • 5.1.17.3382affected
  • 5.1.17.3394affected
  • 5.1.18.314affected
  • 5.1.19.1862affected

References