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CVE record · CVE-2022-0028

PAN-OS: Reflected Amplification Denial-of-Service (DoS) Vulnerability in URL Filtering

CVSS 8.6 HighCriticalIn CISA KEVEPSS 0.027 · 85th percentile

Critical, because:

  • In CISA’s KEV catalogue since 22 Aug 2022: it is known to be exploited.

How we decide what’s critical

Published by the CVE Program (CNA: palo_alto) at 10 Aug 2022, 16:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Palo Alto Networks Cloud NGFW
  • unaffected All
Palo Alto Networks PAN-OS
  • affected 8.1 to before 8.1.23-h1 custom
  • affected 9.0 to before 9.0.16-h3 custom
  • affected 9.1 to before 9.1.14-h4 custom
  • affected 10.0 to before 10.0.11-h1 custom
  • affected 10.1 to before 10.1.6-h6 custom
  • affected 10.2 to before 10.2.2-h2 custom
Palo Alto Networks Prisma Access
  • unaffected 2.1 All
  • unaffected 2.2 All
  • unaffected 3.0 All
  • unaffected 3.1 All
Identifiers
CVE-2022-0028
CNA
palo_alto
Weakness (CWE)
CWE-406
Tags
Published
10 Aug 2022
Updated
21 Oct 2025

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.6 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CNA (palo_alto)
  • CISA KEV Listed since 22 Aug 2022: known to be exploited.
  • EPSS 0.027, the 85th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 10 Aug 2022. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.