CVE-2020-2042— PAN-OS: Buffer overflow in the management web interface
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I. Basic Information for CVE-2020-2042
Vulnerability Information
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Vulnerability Title
PAN-OS: Buffer overflow in the management web interface
Source: NVD (National Vulnerability Database)
Vulnerability Description
A buffer overflow vulnerability in the PAN-OS management web interface allows authenticated administrators to disrupt system processes and potentially execute arbitrary code with root privileges. This issue impacts only PAN-OS 10.0 versions earlier than PAN-OS 10.0.1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Palo Alto Networks PAN-OS 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Palo Alto Networks PAN-OS 存在缓冲区错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。以下是受影响的产品及版本：PAN-OS 10.0.1之前PAN-OS 10.0版本
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 | PAN-OS | 9.1.* | - |
II. Public POCs for CVE-2020-2042
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://security.paloaltonetworks.com/CVE-2020-2042x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2020-2042
Same Patch Batch · Palo Alto Networks · 2020-09-09 · 9 CVEs total
| CVE-2020-2040 | 9.8 CRITICAL | PAN-OS: Buffer overflow when Captive Portal or Multi-Factor Authentication (MFA) is enable |
| CVE-2020-2036 | 8.8 HIGH | PAN-OS: Reflected Cross-Site Scripting (XSS) vulnerability in management web interface |
| CVE-2020-2041 | 7.5 HIGH | PAN-OS: Management web interface denial-of-service (DoS) |
| CVE-2020-2037 | 7.2 HIGH | PAN-OS: OS command injection vulnerability in the management web interface |
| CVE-2020-2038 | 7.2 HIGH | PAN-OS: OS command injection vulnerability in the management web interface |
| CVE-2020-2039 | 5.3 MEDIUM | PAN-OS: Management web interface denial-of-service (DoS) through unauthenticated file uplo |
| CVE-2020-2043 | 3.3 LOW | PAN-OS: Passwords may be logged in clear text when using after-change-detail custom syslog |
| CVE-2020-2044 | 3.3 LOW | PAN-OS: Passwords may be logged in clear text while storing operational command (op comman |
IV. Related Vulnerabilities
Same product: PAN-OS
- CVE-2025-0116
PAN-OS: Firewall Denial of Service (DoS) Using a Specially C - CVE-2025-0115
PAN-OS: Authenticated Admin File Read Vulnerability in PAN-O - CVE-2025-0114
PAN-OS: Denial of Service (DoS) in GlobalProtect - CVE-2024-9471
PAN-OS: Privilege Escalation (PE) Vulnerability in XML API - CVE-2024-8691
PAN-OS: User Impersonation in GlobalProtect Portal
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-121
- CVE-2026-8258
Squirrel sqstdstring.cpp validate_format stack-based overflo - CVE-2026-8234
EFM ipTIME A8004T WifiBasicSet formWifiBasicSet stack-based - CVE-2026-6665
PgBouncer buffer overflow in SCRAM - CVE-2026-41509
Integer underflow in crypto_sign_open() leads to buffer over - CVE-2026-8138
Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based
V. Comments for CVE-2020-2042
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