High severity · published May 13, 2020
CVE-2020-1998
An improper authorization vulnerability in PAN-OS that mistakenly uses the permissions of local linux users instead of the intended SAML permissions of the account when the…
8.8
CVSS
0.9%
EPSS
No
On KEV
Description
An improper authorization vulnerability in PAN-OS that mistakenly uses the permissions of local linux users instead of the intended SAML permissions of the account when the username is shared for the purposes of SSO authentication. This can result in authentication bypass and unintended resource access for the user. This issue affects: PAN-OS 7.1 versions earlier than 7.1.26; PAN-OS 8.1 versions earlier than 8.1.13; PAN-OS 9.0 versions earlier than 9.0.6; PAN-OS 9.1 versions earlier than 9.1.1; All versions of PAN-OS 8.0.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PA
PAN-OS · Palo Alto Networks
7.1.0 before 7.1.26; 8.0.0 through 8.0.20; 8.1.0 before 8.1.13; 9.0.0 before 9.0.6; 9.1.0 before 9.1.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-1998
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-1998
Vendor Advisory
https://security.paloaltonetworks.com/CVE-2020-1998
More from PAN-OS
10.0
CVE-2024-3400
PAN-OS: Arbitrary File Creation Leads to OS Command Injection Vulnerability in GlobalProtect
10.0
CVE-2020-2021
PAN-OS: Authentication Bypass in SAML Authentication
9.8
CVE-2026-109618
RCE via OOM corruption
9.8
CVE-2026-0300
PAN-OS: Unauthenticated user initiated Buffer Overflow Vulnerability in User-ID™ Authentication Portal
9.8
CVE-2024-0012
PAN-OS: Authentication Bypass in the Management Web Interface (PAN-SA-2024-0015)