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CVE-2026-0321

PAN-OS: Denial of Service (DoS) Vulnerabilities in Network Services

At a glance

Severity
MEDIUM 6.6
EPSS
EPSS 0.33 % · percentile 26 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
palo_alto
NVD status
Awaiting Analysis

Description

Denial of service vulnerabilities in Palo Alto Networks PAN-OS® software allow an unauthenticated attacker with network access to cause a denial of service (DoS) condition by sending specially crafted network traffic to or through a dataplane interface. Repeated attempts to trigger this condition result in the firewall entering maintenance mode. Cloud NGFW and Panorama are not affected by this vulnerability.

Scores

VersionScoreVectorScored by
CVSS 4.0MEDIUM 6.6CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amberpalo_alto
CVSS 4.0MEDIUM 6.6CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:M/U:AmberNVD · psirt@paloaltonetworks.com (Secondary)

Weaknesses (CWE)

European references

CERT-FR advisories

Affected products

ProductVersions
Palo Alto Networks · Cloud NGFWunaffected All
Palo Alto Networks · PAN-OSaffected 12.2.0 < 12.2.4 ; affected 12.1.0 < 12.1.10-h2 ; affected 11.2.0 < 11.2.16 ; affected 11.1.0 < 11.1.16-h3 ; affected 10.2.0 < 10.2.18-h12
Palo Alto Networks · Prisma Accessaffected 12.1.0 < 12.1.7-h8 ; affected 11.2.0 < 11.2.7-h21 ; affected 10.2.0 < 10.2.10-h41

References

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD