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CVE-2022-0028

CWE-406

High

89.6

RPS

Description

A PAN-OS URL filtering policy misconfiguration could allow a network-based attacker to conduct reflected and amplified TCP denial-of-service (RDoS) attacks. The DoS attack would appear to originate from a Palo Alto Networks PA-Series (hardware), VM-Series (virtual) and CN-Series (container) firewall against an attacker-specified target. To be misused by an external attacker, the firewall configuration must have a URL filtering profile with one or more blocked categories assigned to a source zone that has an external facing interface. This configuration is not typical for URL filtering and, if set, is likely unintended by the administrator. If exploited, this issue would not impact the confidentiality, integrity, or availability of our products. However, the resulting denial-of-service (DoS) attack may help obfuscate the identity of the attacker and implicate the firewall as the source of the attack. We have taken prompt action to address this issue in our PAN-OS software. All software updates for this issue are expected to be released no later than the week of August 15, 2022. This issue does not impact Panorama M-Series or Panorama virtual appliances. This issue has been resolved…

Source: NVD

Signals

CVSS
8.6
High · v3.1
EPSS
2.54%
Probability of exploitation in the next 30 days (FIRST)
CISA KEV
In CISA KEV since Aug 2022
Fix commit
No known fix commit
Sources: MoreFixes, FreshFixes
Weakness
CWE-406
Published
10 Aug 2022
Last modified 4 Nov 2025

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Data as of 7 Oct 2026, 05:16 UK time

CVE-2022-0028 · RPS 89.6 · DevSecure Intelligence