CVE-2020-2040
Last modified
CVE-2020-2040 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A buffer overflow vulnerability in PAN-OS allows an unauthenticated attacker to disrupt system processes and potentially execute arbitrary code with root privileges by sending a malicious request to the Captive Portal or Multi-Factor Authentication interface. This issue impacts: All versions of PAN-OS 8.0; PAN-OS 8.1 versions earlier than PAN-OS 8.1.15; PAN-OS 9.0 versions earlier than PAN-OS 9.0.9; PAN-OS 9.1 versions earlier than PAN-OS 9.1.3.. EPSS estimates a 3.94% chance of exploitation in the next 30 days.
Description
A buffer overflow vulnerability in PAN-OS allows an unauthenticated attacker to disrupt system processes and potentially execute arbitrary code with root privileges by sending a malicious request to the Captive Portal or Multi-Factor Authentication interface. This issue impacts: All versions of PAN-OS 8.0; PAN-OS 8.1 versions earlier than PAN-OS 8.1.15; PAN-OS 9.0 versions earlier than PAN-OS 9.0.9; PAN-OS 9.1 versions earlier than PAN-OS 9.1.3.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Paloaltonetworks | Pan-Os | >= 8.0.0, <= 8.0.20 |
| Paloaltonetworks | Pan-Os | >= 8.1.0, < 8.1.15 |
| Paloaltonetworks | Pan-Os | >= 9.0.0, < 9.0.9 |
| Paloaltonetworks | Pan-Os | >= 9.1.0, < 9.1.3 |
References
- https://security.paloaltonetworks.com/CVE-2020-2040Vendor Advisory
- https://security.paloaltonetworks.com/CVE-2020-2040Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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