Vulnerability in Palo Alto Networks Prisma Sd-wan Ion
CVE-2026-0244
An improper certificate validation vulnerability in the Palo Alto Networks Prisma SD-WAN ION enables man-in-the-middle (MitM) attacker to impersonate the controller.
Vulnerability class: Improper Certificate Validation
EPSS: 0.002 (12.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Palo Alto Networks Prisma Sd-wan Ion — versions 6.5.0, 6.4.0, 6.3.0
- Paloaltonetworks Ion_1200
- Paloaltonetworks Ion_1200-c5g-ww
- Paloaltonetworks Ion_1200-c-na
- Paloaltonetworks Ion_1200-c-row
- Paloaltonetworks Ion_1200-s
- Paloaltonetworks Ion_1200-s-c5g-ww
- Paloaltonetworks Ion_1200-s-c-na
- Paloaltonetworks Ion_1200-s-c-row
- Paloaltonetworks Ion_3102v
Weakness classification (CWE)
References
- psirt@paloaltonetworks.com (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-0244?
- CVE-2026-0244 is a high-severity vulnerability in Palo Alto Networks Prisma Sd-wan Ion, classified under Improper Certificate Validation. CVSS score: 8.1/10. Published 2026-05-13.
- How severe is CVE-2026-0244?
- High severity. CVSS v3 base score is 8.1 out of 10.