CVE-2021-3054

PAN-OS: Unsigned Code Execution During Plugin Installation Race Condition Vulnerability

MEDIUM

6.6

CVSS Score

Published: September 8, 2021 at 05:10 PM UTC

Updated: June 17, 2026 at 04:04 AM UTC

1 product affected across 1 vendorPAN-OS

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Severity

MEDIUM6.6

Exploit prediction

EPSS 0.9%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

PAN-OS · Palo Alto Networks

95%

10.0 ≤ v < 10.0.710.0.0 ≤ v < 10.0.710.1 ≤ v < 10.1.210.1.0 ≤ v < 10.1.28.1 ≤ v < 8.1.208.1.0 ≤ v < 8.1.209.0 ≤ v < 9.0.149.0.0 ≤ v < 9.0.149.1 ≤ v < 9.1.119.1.0 ≤ v < 9.1.1110.010.18.1 9.0 9.1

Affected range stops below 10.0.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 10.1.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.1.20, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.0.14, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.1.11, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://security.paloaltonetworks.com/CVE-2021-3054

References (1)

x_refsource_MISCVendor Advisory

Source: [email protected]

https://security.paloaltonetworks.com/CVE-2021-3054

CVSS

6.6MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: HIGH
Privileges: HIGH
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-367

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