CVE-2021-3053CWE-755

PAN-OS: Exceptional Condition Denial-of-Service (DoS)

High · published September 8, 2021

CVSS v3.1
7.5
EPSS
1%
Percentile
62.7
In the wild
Unconfirmed
What it is

An improper handling of exceptional conditions vulnerability exists in the Palo Alto Networks PAN-OS dataplane that enables an unauthenticated network-based attacker to send specifically crafted traffic through the firewall that causes the service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.5. This issue does not affect Prisma Access.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01008 · 62.7th percentile
Weakness
CWE-755 · Improper Handling of Exceptional Conditions
Published
2021-09-08T17:10Z
EPSS history
Timeline
  • 08 SEP 17:10Z
    PAN-OS: Exceptional Condition Denial-of-Service (DoS)
    cvelistv5