Vulnerability in Palo Alto Networks Cloud Ngfw
CVE-2026-0280
An IPv6 packet processing vulnerability in the dataplane of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker to bypass firewall security policy enforcement, allowing network traffic that should be blocked to reach protected services. Cloud NGFW and Panorama are not impacted by this vulnerability.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (25.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Palo Alto Networks Cloud Ngfw — versions All
- Palo Alto Networks Panorama — versions All
- Palo Alto Networks Pan-Os — versions 12.1.0, 11.2.0, 11.1.0
- Palo Alto Networks Prisma Access — versions 11.2.0, 10.2.0
- Paloaltonetworks Pan-Os — versions 10.2.7, 10.2.10, 10.2.13
Weakness classification (CWE)
References
- security.paloaltonetworks.com/CVE-2026-0280 (vendor-advisory, Vendor Advisory)
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Frequently asked questions
- What is CVE-2026-0280?
- CVE-2026-0280 is a high-severity vulnerability in Palo Alto Networks Cloud Ngfw, classified under Incorrect Calculation of Buffer Size. CVSS score: 7.2/10. Published 2026-07-09.
- How severe is CVE-2026-0280?
- High severity. CVSS v3 base score is 7.2 out of 10.