Buffer overflow in Palo Alto Networks Pan-os
CVE-2020-2040
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 Authe…
Vulnerability class: Buffer Overflow
EPSS: 0.039 (89.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Palo Alto Networks Pan-os — versions 8.0.*, 9.0, 9.1
- Paloaltonetworks Pan-os
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@paloaltonetworks.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-2040?
- CVE-2020-2040 is a critical-severity vulnerability in Palo Alto Networks Pan-os, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2020-09-09.
- How severe is CVE-2020-2040?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-2040 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.