SB2026081008 - Incorrect Privilege Assignment in Cisco Terminal Services Agent
Published: August 10, 2026
Security Bulletin ID
SB2026081008
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Incorrect Privilege Assignment (CVE-ID: CVE-2026-20028)
CWE-ID: CWE-266 - Incorrect Privilege Assignment
CVSSv4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to bypass firewall rules.
The vulnerability exists due to an incorrect mapping of network connections to user accounts. A remote user can inherit the firewall rules associated with a different user in the system.
Remediation
Install update from vendor's website.