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2 vulnerabilities found for Cisco Terminal Services Agent by Cisco
CVE-2026-20028 (GCVE-0-2026-20028)
Vulnerability from nvd – Published: 2026-08-05 16:18 – Updated: 2026-08-05 17:19
VLAI
EPSS
VEX
Title
Cisco Terminal Services Agent Firewall Rules Bypass Vulnerability
Summary
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 incorrect mapping of network connections to user accounts. An attacker with at least user-level credentials could exploit this vulnerability by sending crafted network traffic to an affected device. A successful exploit could allow the attacker to inherit the firewall rules associated with a different user in the system.
Severity
5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 17:19 UTC
CWE
- CWE-266 - Incorrect Privilege Assignment
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Terminal Services Agent |
Affected:
TSAgent-1.3
Affected: TSAgent-1.4.2 Affected: TSAgent-1.2 Affected: TSAgent-1.4 Affected: TSAgent-1.0 Affected: TSAgent-1.4.1 Affected: TSAgent-1.1 |
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CVE-2026-20028 (GCVE-0-2026-20028)
Vulnerability from cvelistv5 – Published: 2026-08-05 16:18 – Updated: 2026-08-05 17:19
VLAI
EPSS
VEX
Title
Cisco Terminal Services Agent Firewall Rules Bypass Vulnerability
Summary
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 incorrect mapping of network connections to user accounts. An attacker with at least user-level credentials could exploit this vulnerability by sending crafted network traffic to an affected device. A successful exploit could allow the attacker to inherit the firewall rules associated with a different user in the system.
Severity
5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 17:19 UTC
CWE
- CWE-266 - Incorrect Privilege Assignment
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Terminal Services Agent |
Affected:
TSAgent-1.3
Affected: TSAgent-1.4.2 Affected: TSAgent-1.2 Affected: TSAgent-1.4 Affected: TSAgent-1.0 Affected: TSAgent-1.4.1 Affected: TSAgent-1.1 |
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"version": "TSAgent-1.4.2"
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"status": "affected",
"version": "TSAgent-1.2"
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"status": "affected",
"version": "TSAgent-1.4"
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"status": "affected",
"version": "TSAgent-1.0"
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"version": "TSAgent-1.4.1"
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