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CVE Vulnerability Details :
CVE-2026-0243
PUBLISHED
More InfoOfficial Page
Assigner-palo_alto
Assigner Org ID-d6c1279f-00f6-4ef7-9217-f89ffe703ec0
View Known Exploited Vulnerability (KEV) details
Published At-13 May, 2026 | 19:10
Updated At-14 May, 2026 | 10:48
Rejected At-
▼CVE Numbering Authority (CNA)
Prisma SD-WAN: Denial of Service (DoS) Vulnerability Through IPv6 Crafted Packet

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.

Affected Products
Vendor
Palo Alto Networks, Inc.Palo Alto Networks
Product
Prisma SD-WAN ION
Default Status
unaffected
Versions
Affected
  • From 6.5.0 before 25.3.3 (custom)
    • -> unaffectedfrom6.5.3-b15
  • From 6.4.0 before 25.1.8 (custom)
    • -> unaffectedfrom6.4.3-b8
  • From 6.3.0 before 24.3.6 (custom)
    • -> unaffectedfrom6.3.6-b10
Unaffected
  • 6.1.0 (custom)
  • 5.6.0 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-606CWE-606 Unchecked Input for Loop Condition
Type: CWE
CWE ID: CWE-606
Description: CWE-606 Unchecked Input for Loop Condition
Metrics
VersionBase scoreBase severityVector
4.04.9MEDIUM
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:U/AU:Y/R:U/V:D/RE:M/U:Amber
Version: 4.0
Base score: 4.9
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:U/AU:Y/R:U/V:D/RE:M/U:Amber
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-130CAPEC-130 Excessive Allocation
CAPEC ID: CAPEC-130
Description: CAPEC-130 Excessive Allocation
Solutions

Version Minor Version Suggested Solution Prisma SD-WAN ION 6.5 6.5.1 through 6.5.3 Upgrade to 6.5.3-b15 or later. Prisma SD-WAN ION 6.4 6.4.1 through 6.4.3 Upgrade to 6.4.3-b8 or later. Prisma SD-WAN ION 6.3 6.3.1 through 6.3.6 Upgrade to 6.3.6-b10 or later. Prisma SD-WAN ION 6.1 No action needed. Prisma SD-WAN ION 5.6 No action needed.

Configurations

IPv6 must be enabled (https://docs.paloaltonetworks.com/prisma-sd-wan/administration/prisma-sd-wan-sites-and-devices/prisma-sd-wan-ports-and-interfaces/configure-internet-ports) on the SD-WAN ION device.

Workarounds

Disable IPv6 on SD-WAN ION devices if not required.

Exploits

Palo Alto Networks is not aware of any malicious exploitation of this issue.

Credits
other
Palo Alto Networks thanks our internal security research teams for discovering and reporting this issue.
Timeline
EventDate
Initial publication.2026-05-13 16:00:00
Event: Initial publication.
Date: 2026-05-13 16:00:00
Replaced By
Rejected Reason
References
HyperlinkResource
https://security.paloaltonetworks.com/CVE-2026-0243
vendor-advisory
Hyperlink: https://security.paloaltonetworks.com/CVE-2026-0243
Resource:
vendor-advisory
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found