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CVE-2026-0280— PAN-OS: IPv6 Firewall Policy Bypass

Quick assessment

Affected
Palo Alto Networks Cloud NGFW
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 Cloud NGFW是美国Palo Alto Networks公司的防火墙。 Palo Alto Networks Cloud NGFW存在缓冲区错误漏洞，该漏洞源于数据平面IPv6数据包处理问题，可能导致未经身份验证的攻击者绕过防火墙安全策略，使应被阻止的网络流量到达受保护服务。

CVSS 1.7 · Low EPSS 0.34% · P25

Affected Version Matrix 8

VendorProduct Version RangeStatus
Palo Alto Networks Cloud NGFW All unaffected
Palo Alto Networks PAN-OS 12.1.0< 12.1.8 affected
11.2.0< 11.2.13 affected
11.1.0< 11.1.16 affected
10.2.0< 10.2.18-h8 affected
Palo Alto Networks Panorama All unaffected
Palo Alto Networks Prisma Access 11.2.0< 11.2.7-h18 affected
10.2.0< 10.2.10-h39 affected
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I. Basic Information for CVE-2026-0280

Vulnerability Information
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Vulnerability Title
PAN-OS: IPv6 Firewall Policy Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/AU:Y/V:D/RE:M/U:Amber
Source: CVE Program / CVE List V5
Vulnerability Type
缓冲区大小计算不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Palo Alto Networks Cloud NGFW 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Palo Alto Networks Cloud NGFW是美国Palo Alto Networks公司的防火墙。 Palo Alto Networks Cloud NGFW存在缓冲区错误漏洞，该漏洞源于数据平面IPv6数据包处理问题，可能导致未经身份验证的攻击者绕过防火墙安全策略，使应被阻止的网络流量到达受保护服务。
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 Cloud NGFW - -
Palo Alto Networks PAN-OS 12.1.0 ~ 12.1.8 cpe:2.3:o:palo_alto_networks:pan-os:12.1.7:-:*:*:*:*:*:*
Palo Alto Networks Panorama - -
Palo Alto Networks Prisma Access 11.2.0 ~ 11.2.7-h18 -

II. Public POCs for CVE-2026-0280

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III. Intelligence Information for CVE-2026-0280

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Vendor Advisories for CVE-2026-0280 (1)

Same Patch Batch · Palo Alto Networks · 2026-07-09 · 13 CVEs total

CVE-2026-0286 6.0 MEDIUM PAN-OS: Authenticated Command Injection in CLI
CVE-2026-0284 4.7 MEDIUM PAN-OS: XML Injection Vulnerability in Large Scale VPN (LSVPN)
CVE-2026-0287 4.6 MEDIUM PAN-OS: Denial of Service Vulnerabilities in Network Traffic Processing
CVE-2026-0283 4.5 MEDIUM PAN-OS: Authentication Bypass Vulnerability in Large Scale VPN (LSVPN)
CVE-2026-0285 4.4 MEDIUM PAN-OS: Server-Side Request Forgery Vulnerability in Management Web Interface
CVE-2026-0281 1.7 LOW PAN-OS: Information Disclosure Vulnerability in Management Web Interface
CVE-2026-0282 1.2 LOW PAN-OS: File Deletion Vulnerability in Management Web Interface
CVE-2026-0279 0.4 LOW PAN-OS: Multiple Cross-Site Scripting (XSS) Vulnerabilities
CVE-2026-0275 Prisma Browser: Local Privilege Escalation on macOS
CVE-2026-0276 Cortex XDR Broker VM: Privilege Escalation (PE) Vulnerability
CVE-2026-0277 Prisma Access Agent: Improper Certificate Validation on iOS
CVE-2026-0278 Prisma Access Agent: Multiple DLP Policy Bypass Vulnerabilities on Windows

IV. Related Vulnerabilities

Same product: Cloud NGFW
Same vendor: Palo Alto Networks
Same weakness: CWE-131

V. Comments for CVE-2026-0280

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