CVE-2021-3038— GlobalProtect App: Windows VPN kernel driver denial of service (DoS)
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I. Basic Information for CVE-2021-3038
Vulnerability Information
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Vulnerability Title
GlobalProtect App: Windows VPN kernel driver denial of service (DoS)
Source: NVD (National Vulnerability Database)
Vulnerability Description
A denial-of-service (DoS) vulnerability in Palo Alto Networks GlobalProtect app on Windows systems allows a limited Windows user to send specifically-crafted input to the GlobalProtect app that results in a Windows blue screen of death (BSOD) error. This issue impacts: GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.8; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.4.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Palo Alto Networks GlobalProtect 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Palo Alto Networks GlobalProtect是美国Palo Alto Networks公司的一套网络防护软件。该软件可提供防火墙监控及威胁预防等功能。 Palo Alto Networks GlobalProtect 存在输入验证错误漏洞，该漏洞允许本地用户执行拒绝服务(DoS)攻击。
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 | GlobalProtect App | 5.1 ~ 5.1.8 | - |
II. Public POCs for CVE-2021-3038
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://security.paloaltonetworks.com/CVE-2021-3038x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-3038
Same Patch Batch · Palo Alto Networks · 2021-04-20 · 4 CVEs total
| CVE-2021-3035 | 6.7 MEDIUM | Bridgecrew Checkov: Unsafe deserialization of Terraform files allows code execution |
| CVE-2021-3036 | 4.4 MEDIUM | PAN-OS: Administrator secrets are logged in web server logs when using the PAN-OS XML API |
| CVE-2021-3037 | 2.3 LOW | PAN-OS: Secrets for scheduled configuration exports are logged in system logs |
IV. Related Vulnerabilities
Same product: GlobalProtect App
- CVE-2025-2183
GlobalProtect App: Improper Certificate Validation Leads to - CVE-2025-2179
GlobalProtect App: Non Admin User Can Disable the GlobalProt - CVE-2025-0141
GlobalProtect App: Privilege Escalation (PE) Vulnerability - CVE-2025-0140
GlobalProtect App: Non Admin User Can Disable the GlobalProt - CVE-2025-4227
GlobalProtect App: Interception in Endpoint Traffic Policy E
Same vendor: Palo Alto Networks
- CVE-2026-0300
PAN-OS: Unauthenticated user initiated Buffer Overflow Vulne - CVE-2026-0232
Cortex XDR Agent: Local Administrator can disable the agent - CVE-2026-0233
Autonomous Digital Experience Manager: Improper validation o - CVE-2026-0234
Cortex XSOAR: Improper Verification of Cryptographic Signatu - CVE-2026-0231
Cortex XDR Broker VM: Sensitive Information Disclosure Vulne
Same weakness: CWE-20
V. Comments for CVE-2021-3038
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