CVE-2021-3064PAN-OS Stack Buffer Overflow
A memory corruption vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway interfaces that enables an unauthenticated network-based attacker to disrupt system processes and potentially execute arbitrary code with root privileges.
Published Nov 11, 2021 · Updated Sep 17, 2024 · Also known as TR-21-0914
Key Facts
Patch in the next maintenance window- CVE-2021-3064 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting PAN-OS (Paloaltonetworks).
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 20% probability of exploitation in the next 30 days.
- Fixed versions are available, including PAN-OS 8.1.17.
- Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
Scores
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
20%
Higher than 97.4% of all scored CVEs
Exploit maturity
None known
ATLAS score
37/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
None known
Public exploit code
0
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
Description
A memory corruption vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway interfaces that enables an unauthenticated network-based attacker to disrupt system processes and potentially execute arbitrary code with root privileges. The attacker must have network access to the GlobalProtect interface to exploit this issue.
This issue impacts PAN-OS 8.1 versions earlier than PAN-OS 8.1.17. Prisma Access customers are not impacted by this issue.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| PAN-OSPaloaltonetworks | >= 8.1 | 8.1.17 |
Patched Releases
PAN-OS
8.1.17
Timeline
Publicly disclosed
Nov 11, 2021
Last updated
Sep 17, 2024
Weakness Type
- CWE-121 Stack-based Buffer Overflow
- CWE-787 Out-of-bounds Write
References
- advisorysecurity.paloaltonetworks.com · CVE-2021-3064
- advisoryrandori.com · CVE-2021-3064
- advisoryUSOM advisory
FAQ
Common Questions.
A memory corruption vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway interfaces that enables an unauthenticated network-based attacker to disrupt system processes and potentially execute arbitrary code with root privileges.
Affected: PAN-OS (Paloaltonetworks) versions >= 8.1. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including PAN-OS 8.1.17.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
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