Privilege escalation in Cisco Terminal Services Agent
CVE-2026-20028
A vulnerability in the network driver of Cisco Terminal Service (TS) Agent could allow an authenticated, remote attacker to bypass firewall rules that are associated with the account of the attacker. This vulnerability is due to an inco…
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N.
Affected products
- Cisco Terminal Services Agent — versions TSAgent-1.3, TSAgent-1.4.2, TSAgent-1.2
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-20028?
- CVE-2026-20028 is a medium-severity vulnerability in Cisco Terminal Services Agent, classified under Incorrect Privilege Assignment. CVSS score: 5.0/10. Published 2026-08-05.
- How severe is CVE-2026-20028?
- Medium severity. CVSS v3 base score is 5.0 out of 10.