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CVE-2026-0243— Prisma SD-WAN: Denial of Service (DoS) Vulnerability Through IPv6 Crafted Packet

Quick assessment

Affected
Palo Alto Networks Prisma SD-WAN ION
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Palo Alto Networks Prisma SD-WAN ION是美国Palo Alto Networks公司的一系列集成 4G 或 5G 蜂窝网络接入的下一代软件定义企业分支设备。 Palo Alto Networks Prisma SD-WAN ION存在安全漏洞，该漏洞源于拒绝服务问题，可能导致网络相邻的未认证攻击者通过发送特制IPv6数据包造成系统中断。

AI Predicted 7.5 Difficulty: Easy EPSS 0.17% · P7

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 5

VendorProduct Version RangeStatus
Palo Alto Networks Prisma SD-WAN ION 6.5.0< 25.3.3 affected
6.4.0< 25.1.8 affected
6.3.0< 24.3.6 affected
6.1.0 unaffected
5.6.0 unaffected
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I. Basic Information for CVE-2026-0243

Vulnerability Information
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Vulnerability Title
Prisma SD-WAN: Denial of Service (DoS) Vulnerability Through IPv6 Crafted Packet
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
循环条件输入未经检查
Source: CVE Program / CVE List V5
Vulnerability Title
Palo Alto Networks Prisma SD-WAN ION 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Palo Alto Networks Prisma SD-WAN ION是美国Palo Alto Networks公司的一系列集成 4G 或 5G 蜂窝网络接入的下一代软件定义企业分支设备。 Palo Alto Networks Prisma SD-WAN ION存在安全漏洞，该漏洞源于拒绝服务问题，可能导致网络相邻的未认证攻击者通过发送特制IPv6数据包造成系统中断。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Palo Alto Networks Prisma SD-WAN ION 6.5.0 ~ 25.3.3 -

II. Public POCs for CVE-2026-0243

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III. Intelligence Information for CVE-2026-0243

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Vendor Advisories for CVE-2026-0243 (1)

Same Patch Batch · Palo Alto Networks · 2026-05-13 · 26 CVEs total

CVE-2026-0238 Broker VM: Improper Input Validation in Broker VM Certificate and Key Fields
CVE-2026-0242 Trust Protection Foundation: SQL Injection Vulnerability
CVE-2026-0258 PAN-OS: Server-Side Request Forgery (SSRF) in IKEv2 Certificate URL Fetching
CVE-2026-0245 Prisma Access Agent: Information Disclosure Vulnerabilities
CVE-2026-0259 WildFire WF-500 and WF-500-B: Arbitrary File Read and Delete Vulnerability in WildFire App
CVE-2026-0236 Prisma Browser: Code Injection Enables Security Controls Bypass
CVE-2026-0241 Trust Protection Foundation: Multiple Authorization Bypass Vulnerabilities
CVE-2026-0261 PAN-OS: Authenticated Admin Command Injection Vulnerability
CVE-2026-0265 PAN-OS: Authentication Bypass with Cloud Authentication Service (CAS) enabled
CVE-2026-0262 PAN-OS: Denial of Service Vulnerabilities in Network Traffic Parsing
CVE-2026-0237 Prisma Browser: Improperly Restricted Automation Bridge Allows Security Bypass
CVE-2026-0247 Prisma Access Agent Endpoint DLP: Authorization Bypass Vulnerabilities
CVE-2026-0256 PAN-OS: Stored Cross-Site Scripting (XSS) Vulnerability in the Web Interface
CVE-2026-0250 GlobalProtect App: Buffer Overflow Vulnerability during connection to Portal or Gateway
CVE-2026-0264 PAN-OS: Heap-Based Buffer Overflow in DNS Proxy and DNS Server Allows Unauthenticated Remo
CVE-2026-0235 Prisma Browser: Access and Data Rule Bypass
CVE-2026-0251 GlobalProtect App: Local Privilege Escalation Vulnerabilities
CVE-2026-0249 GlobalProtect App: Certificate Validation Bypass Vulnerabilities
CVE-2026-0240 Trust Protection Foundation: Sensitive Information Disclosure Vulnerability
CVE-2026-0244 Prisma SD-WAN: Improper Certificate Validation Vulnerability

Showing top 20 of 26 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Prisma SD-WAN ION
Same vendor: Palo Alto Networks
Same weakness: CWE-606

V. Comments for CVE-2026-0243

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