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CVE-2021-3045

PAN-OS: OS Command Argument Injection in Web Interface

Medium4.9EPSS 0.79%
Published
Updated
Reserved
Assigned by
palo_alto

Description

An OS command argument injection vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator to read any arbitrary file from the file system. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.19; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.10. PAN-OS 10.0 and later versions are not impacted.

Scores

CVSS scores of CVE-2021-3045, by who scored it
Scored byCVSSScoreVector
palo_altoCNA (assigner)3.1Medium4.9CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
NVDNVD · Modified3.1Medium4.9CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
EPSS (exploitation in 30 days)
0.79% · top 44% of all CVEs (5 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.9.

Weakness

Affected products

  • Palo Alto Networks · PAN-OS

    • unaffected 10.0.*
    • unaffected 10.1.*
    • affected 8.1 – < 8.1.19
    • affected 9.0 – < 9.0.14
    • affected 9.1 – < 9.1.10

What to do

Solution: This issue is fixed in PAN-OS 8.1.19, PAN-OS 9.0.14, PAN-OS 9.1.10, and all later PAN-OS versions.

Workaround: This issue requires the attacker to have authenticated access to the PAN-OS web interface. You can mitigate the impact of this issue by following best practices for securing the PAN-OS web interface. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation at https://docs.paloaltonetworks.com/best-practices.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .