Vulnerability in Palo Alto Networks Cloud Ngfw
CVE-2026-0227
A vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to cause a denial of service (DoS) to the firewall. Repeated attempts to trigger this issue results in the firewall entering into maintenance mode.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.007 (53.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.001
Affected products
- Palo Alto Networks Cloud Ngfw — versions All
- Palo Alto Networks Pan-Os — versions 12.1.2, 11.2.0, 11.1.0
- Palo Alto Networks Prisma Access — versions 11.2, 10.2
- Paloaltonetworks Pan-Os — versions 10.1.14, 10.2.7, 10.2.10
- Paloaltonetworks Prisma Access
Weakness classification (CWE)
References
- security.paloaltonetworks.com/CVE-2026-0227 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-0227?
- CVE-2026-0227 is a high-severity vulnerability in Palo Alto Networks Cloud Ngfw, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 7.5/10. Published 2026-01-15.
- How severe is CVE-2026-0227?
- High severity. CVSS v3 base score is 7.5 out of 10.