CVE-2020-1992 - CVE House
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Status published High CVE-2020-1992

PAN-OS on PA-7000 Series: Varrcvr daemon network-based denial of service or privilege escalation

Vulnerability Description

A format string vulnerability in the Varrcvr daemon of PAN-OS on PA-7000 Series devices with a Log Forwarding Card (LFC) allows remote attackers to crash the daemon creating a denial of service condition or potentially execute code with root privileges. This issue affects Palo Alto Networks PAN-OS 9.0 versions before 9.0.7; PAN-OS 9.1 versions before 9.1.2 on PA-7000 Series devices with an LFC installed and configured. This issue requires WildFire services to be configured and enabled. This issue does not affect PAN-OS 8.1 and earlier releases. This issue does not affect any other PA Series firewalls.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • This issue was found by a customer.

References

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Affected Vendor

Palo Alto Networks

View all reports →

Affected Software

PAN-OS
Vulnerable Versions:
9.0, 9.1, 8.1.*, 8.0.*, 7.1.*

Timeline

Official Publish: April 8th, 2020
Last Modified: September 17th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-134

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.