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CVE-2020-2011

PAN-OS: Panorama registration denial of service

High7.5EPSS 1.9%
Published
Updated
Reserved
Assigned by
palo_alto

Description

An improper input validation vulnerability in the configuration daemon of Palo Alto Networks PAN-OS Panorama allows for a remote unauthenticated user to send a specifically crafted registration request to the device that causes the configuration service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS Panorama services by restarting the device and putting it into maintenance mode. This issue affects: All versions of PAN-OS 7.1, PAN-OS 8.0; PAN-OS 8.1 versions earlier than 8.1.14; PAN-OS 9.0 versions earlier than 9.0.7; PAN-OS 9.1 versions earlier than 9.1.0.

Scores

CVSS scores of CVE-2020-2011, by who scored it
Scored byCVSSScoreVector
palo_altoCNA (assigner)3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
1.9% · top 20% of all CVEs (2 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • Palo Alto Networks · PAN-OS

    • affected 7.1.*
    • affected 8.0.*
    • affected 8.1 – < 8.1.14
    • affected 9.0 – < 9.0.7
    • affected 9.1 – < 9.1.0

What to do

Solution: This issue is fixed in PAN-OS 8.1.14, PAN-OS 9.0.7, and all later PAN-OS versions. PAN-OS 8.0 is now end-of-life as of October 31, 2019, and is no longer covered by our Product Security Assurance policies. PAN-OS 7.1 is on extended support until June 30, 2020, and is only being considered for critical security vulnerability fixes.

Workaround: This issues affects the management interface of PAN-OS and is strongly mitigated by following best practices for securing the PAN-OS management interface. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation, available at: https://docs.paloaltonetworks.com

References (1)

Sources

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

Record last updated .