Vulnerability Details CVE-2026-0288
Multiple buffer overflow vulnerabilities in the User-ID Terminal Server Agent (TSA) component of Palo Alto Networks PAN-OS software allow an unauthenticated attacker with network access to cause a denial of service (DoS) condition or potentially execute arbitrary code by sending specially crafted network traffic.
The security risk posed by this issue is minimized when the User-ID Terminal Server Agent connectivity is restricted to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://docs.paloaltonetworks.com/ngfw/help/10-2/user-identification/device-user-identification-terminal-services-agents#:~:text=To%20minimize%20security%20risk%2C%20restrict%20TS%20Agent%20connectivity%20to%20trusted%20internal%20IP%20addresses%20only. .
Panorama is not impacted by this vulnerability.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 42.5%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2026-0288
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.0
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.1
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.10
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.11
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.12
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.13
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.14
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.15
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.16
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.17
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.18
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.2
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.3
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.4
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.5
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.6
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.7
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.8
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cpe:2.3:o:paloaltonetworks:pan-os:10.2.9
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cpe:2.3:o:paloaltonetworks:pan-os:11.1.0
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cpe:2.3:o:paloaltonetworks:pan-os:11.1.1
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cpe:2.3:o:paloaltonetworks:pan-os:11.1.10
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cpe:2.3:o:paloaltonetworks:pan-os:11.1.11
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cpe:2.3:o:paloaltonetworks:pan-os:11.1.12
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cpe:2.3:o:paloaltonetworks:pan-os:11.1.13
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cpe:2.3:o:paloaltonetworks:pan-os:11.1.14
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cpe:2.3:o:paloaltonetworks:pan-os:11.1.2
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cpe:2.3:o:paloaltonetworks:pan-os:11.1.3
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cpe:2.3:o:paloaltonetworks:pan-os:11.1.4
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cpe:2.3:o:paloaltonetworks:pan-os:11.1.5
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cpe:2.3:o:paloaltonetworks:pan-os:11.1.6
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cpe:2.3:o:paloaltonetworks:pan-os:11.1.8
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cpe:2.3:o:paloaltonetworks:pan-os:11.1.9
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cpe:2.3:o:paloaltonetworks:pan-os:11.2.0
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cpe:2.3:o:paloaltonetworks:pan-os:11.2.1
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cpe:2.3:o:paloaltonetworks:pan-os:11.2.10
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cpe:2.3:o:paloaltonetworks:pan-os:11.2.11
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cpe:2.3:o:paloaltonetworks:pan-os:11.2.2
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cpe:2.3:o:paloaltonetworks:pan-os:11.2.3
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cpe:2.3:o:paloaltonetworks:pan-os:11.2.4
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cpe:2.3:o:paloaltonetworks:pan-os:11.2.5
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cpe:2.3:o:paloaltonetworks:pan-os:11.2.6
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cpe:2.3:o:paloaltonetworks:pan-os:11.2.7
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cpe:2.3:o:paloaltonetworks:pan-os:11.2.8
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cpe:2.3:o:paloaltonetworks:pan-os:11.2.9
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cpe:2.3:o:paloaltonetworks:pan-os:12.1.2
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cpe:2.3:o:paloaltonetworks:pan-os:12.1.3
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cpe:2.3:o:paloaltonetworks:pan-os:12.1.4
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cpe:2.3:o:paloaltonetworks:pan-os:12.1.5
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cpe:2.3:o:paloaltonetworks:pan-os:12.1.6
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cpe:2.3:o:paloaltonetworks:pan-os:12.1.7