Vulnerability in Palo Alto Networks Prisma Sd-Wan Ion
CVE-2026-0243
A denial of service (DoS) vulnerability in Palo Alto Networks Prisma SD-WAN ION devices enables an unauthenticated attacker in a network adjacent to a Prisma SD-WAN ION device to cause a system disruption by sending a specially crafted IPv6 packet.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (6.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
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
- security.paloaltonetworks.com/CVE-2026-0243 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-0243?
- CVE-2026-0243 is a medium-severity vulnerability in Palo Alto Networks Prisma Sd-Wan Ion, classified under CWE-606. CVSS score: 6.5/10. Published 2026-05-13.
- How severe is CVE-2026-0243?
- Medium severity. CVSS v3 base score is 6.5 out of 10.