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CVE record · CVE-2024-3393

PAN-OS: Firewall Denial of Service (DoS) in DNS Security Using a Specially Crafted Packet

CVSS 8.7 HighCriticalIn CISA KEVEPSS 0.29 · 98th percentile

Critical, because:

  • In CISA’s KEV catalogue since 30 Dec 2024: it is known to be exploited.
  • CVSS score 8.7 (7.0 or more) and EPSS 0.29 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the CVE Program (CNA: palo_alto) at 27 Dec 2024, 09:44 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
Other versions: unaffected
Palo Alto Networks PAN-OS
  • affected 11.2.0 to before 11.2.3 custom
  • affected 11.1.0 to before 11.1.2-h16 custom
  • affected 10.2.8 to before 10.2.8-h19 custom
  • affected 10.1.14 to before 10.1.14-h8 custom
Other versions: unaffected
Palo Alto Networks PAN-OS
  • unaffected 10.2.0 to before 10.2.8 custom
  • affected 11.2.0 to before 11.2.3 custom
Other versions: unaffected
Identifiers
CVE-2024-3393
CNA
palo_alto
Weakness (CWE)
CWE-754
Tags
Published
27 Dec 2024
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
8.7 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:N/R:U/V:C/RE:M/U:Amber CNA (palo_alto)Used for this record
7.1 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:N/R:U/V:C/RE:M/U:Amber CNA (palo_alto)
  • CISA KEV Listed since 30 Dec 2024: known to be exploited.
  • EPSS 0.29, the 98th 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 27 Dec 2024. 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.