CVE-2021-3054: high-severity vulnerability in Palo Alto Networks PAN-OS
PAN-OS: Unsigned Code Execution During Plugin Installation Race Condition Vulnerability
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.2epss 0.9%
A time-of-check to time-of-use (TOCTOU) race condition vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator with permission to upload plugins to execute arbitrary code with root user privileges. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11; PAN-OS 10.0 versions earlier than PAN-OS 10.0.7; PAN-OS 10.1 versions earlier than PAN-OS 10.1.2. This issue does not affect Prisma Access.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
Palo Alto Networks · PAN-OSRelated CVEs — Palo Alto Networks PAN-OS
In the same product, most dangerous first.
CVE-2024-3400CRITICALPAN-OS: Arbitrary File Creation Leads to OS Command Injection Vulnerability in GlobalProtectEPSS 100.0%KEVCVE-2024-0012CRITICALPAN-OS: Authentication Bypass in the Management Web Interface (PAN-SA-2024-0015)EPSS 99.8%KEVCVE-2025-0108HIGHPAN-OS: Authentication Bypass in the Management Web InterfaceEPSS 98.5%KEVCVE-2026-0257HIGHPAN-OS: GlobalProtect Authentication Bypass VulnerabilitiesEPSS 95.6%KEVCVE-2024-9474MEDIUMPAN-OS: Privilege Escalation (PE) Vulnerability in the Web Management InterfaceEPSS 93.8%KEVCVE-2026-0300CRITICALPAN-OS: Unauthenticated user initiated Buffer Overflow Vulnerability in User-ID™ Authentication PortalEPSS 41.7%KEV