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Severe, 6 weeks1496Projects326

1496 severe, 6 weeks · 326 projects

Palo Alto NetworksCVE-2026-0288

Palo Alto Networks PAN-OS: buffer overflow

Palo Alto Networks

CVE-2026-0288 · Published Jul 8, 2026 · updated Aug 11, 2026

High7.2
Fix: upgrade to 12.1.8 or later (6 fixed versions below)
Palo Alto Networks advisory

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.

Affected versions

PackageAffectedFixed in
PAN-OS
Product
>= 12.1.0, < 12.1.812.1.8
>= 11.2.0, < 11.2.1311.2.13
>= 11.1.0, < 11.1.1611.1.16
>= 10.2.0, < 10.2.7-h3610.2.7-h36
Prisma Access
Product
>= 11.2.0, < 11.2.7-h1811.2.7-h18
>= 10.2.0, < 10.2.10-h3910.2.10-h39
Details and references
CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:M/U:Red
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-787

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