UpHeron
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Servers and applications

CVE-2022-0023

An improper handling of exceptional conditions vulnerability exists in the DNS proxy feature of Palo Alto Networks PAN-OS software that enables a meddler-in-the-middle (MITM) to send specifically crafted traffic to the firewall that causes the service to restart unexpectedly. Repeated attempts to send this request result in denial-of-service to all PAN-OS services by restarting the device in…

Severity
Medium 5.9
Published
13 Apr 2022
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
8.1.22, 9.0.16, 9.1.13, 10.0.10, 10.1.5
Sources
NVD

Affected software

SoftwareAffected versions
Palo Alto Networks PAN-OSServers and applications · cpe:o:paloaltonetworks:pan-os
  • From 8.1.0 before 8.1.22
  • From 9.0.0 before 9.0.16
  • From 9.1.0 before 9.1.13
  • From 10.0.0 before 10.0.10
  • From 10.1.0 before 10.1.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2022-0023
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2022-0023