#VU28956 Stack-based buffer overflow

Published: 2020-06-10

Vulnerability identifier: #VU28956

Vulnerability risk: Low

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-2027


Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Palo Alto PAN-OS
Operating systems & Components / Operating system

Vendor: Palo Alto Networks, Inc.


The vulnerability allows a remote administrator to escalate privileges on the system.

The vulnerability exists due to a boundary within the authd component of the PAN-OS management server. A remote authenticated administrator can send specially crafted request to the authd service, trigger a stack-based buffer overflow and crash it or execute arbitrary code with root privileges.

Install updates from vendor's website.

Vulnerable software versions

Palo Alto PAN-OS: 9.0.0 - 9.0.6, 8.1.0 - 8.1.12, 8.0.0 - 8.0.21, 7.1.0 - 7.1.26


External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

Latest bulletins with this vulnerability