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CVE-2026-0310— PAN-OS: Buffer Overflow Vulnerability via XML Processing

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 PAN-OS® 软件中的 XML 处理功能存在缓冲区溢出漏洞。具备网络访问权限的未认证攻击者（可访问管理 Web 接口或数据平面接口）利用该漏洞，可在 VM 系列防火墙上引发拒绝服务（DoS）状况，或在 PA 系列防火墙上以 root 权限执行任意代码。 根据我们推荐的最佳实践部署指南（https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management

CVSS 5.2 · Medium
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I. Basic Information for CVE-2026-0310

Vulnerability Information
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Vulnerability Title
PAN-OS: Buffer Overflow Vulnerability via XML Processing
Source: CVE Program / CVE List V5
Vulnerability Description
A buffer overflow vulnerability in the XML processing functionality of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to the management web or dataplane interface to cause a denial of service (DoS) condition on VM-Series firewalls or execute arbitrary code with root privileges on the PA-Series firewalls. The security risk posed by this issue is minimized when the management interface is restricted to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . Panorama is impacted by this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Palo Alto Networks Cloud NGFW All -
Palo Alto Networks PAN-OS 12.2.0 ~ 12.2.3 cpe:2.3:o:palo_alto_networks:pan-os:12.2.2:*:*:*:*:*:*:*
Palo Alto Networks Prisma Access 11.2.0 ~ 11.2.4-h21 -

II. Public POCs for CVE-2026-0310

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III. Intelligence Information for CVE-2026-0310

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Vendor Advisories for CVE-2026-0310 (1)

Same Patch Batch · Palo Alto Networks · 2026-09-10 · 9 CVEs total

CVE-2026-0307 5.9 MEDIUM GlobalProtect App: Local Privilege Escalation Vulnerabilities
CVE-2026-0306 5.8 MEDIUM Prisma Access Agent: EndPoint DLP Bypass Vulnerability on Windows
CVE-2026-0304 4.8 MEDIUM Cortex XDR Broker VM: Privilege Escalation Vulnerability
CVE-2026-0305 4.3 MEDIUM Prisma Access Agent: Information Disclosure Vulnerability on Linux
CVE-2026-0309 4.0 MEDIUM PAN-OS: Authenticated Command Injection in CLI with Luna HSM Configuration
CVE-2026-0303 2.4 LOW Checkov by Prisma Cloud: Code Execution via Auto-Loaded Configuration File
CVE-2026-0302 1.1 LOW Checkov by Prisma Cloud: OS Command Injection Vulnerability
CVE-2026-0308 0.4 LOW PAN-OS: Stored Cross-Site Scripting (XSS) Vulnerability in the Web Interface

IV. Related Vulnerabilities

Same product: Cloud NGFW
Same vendor: Palo Alto Networks
Same weakness: CWE-787

V. Comments for CVE-2026-0310

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