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CVE-2026-0283— PAN-OS: Authentication Bypass Vulnerability in Large Scale VPN (LSVPN)

CVSS 4.5 · Medium EPSS 0.21% · P12

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 6

VendorProductVersion RangeStatus
Palo Alto NetworksCloud NGFWAllunaffected
Palo Alto NetworksPAN-OS12.1.0< 12.1.8affected
11.2.0< 11.2.13affected
11.1.0< 11.1.16affected
10.2.0< 10.2.18-h8affected
Palo Alto NetworksPrisma AccessAllunaffected
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I. Basic Information for CVE-2026-0283

Vulnerability Information
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Vulnerability Title
PAN-OS: Authentication Bypass Vulnerability in Large Scale VPN (LSVPN)
Source: CVE Program / CVE List V5
Vulnerability Description
An authentication bypass vulnerability in Large Scale VPN ( LSVPN) functionality of Palo Alto Networks PAN-OS software allows an attacker with network access to bypass security restrictions and establish an unauthorized site-to-site VPN connection. Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:H/SI:L/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Palo Alto Networks Cloud NGFW 授权问题漏洞
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存在授权问题漏洞，该漏洞源于Large Scale VPN功能存在身份验证绕过问题，可能导致具有网络访问权限的攻击者绕过安全限制并建立未经授权的站点到站点VPN连接。
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

VendorProductAffected VersionsCPESubscribe
Palo Alto NetworksCloud NGFW--
Palo Alto NetworksPAN-OS 12.1.0 ~ 12.1.8 cpe:2.3:o:palo_alto_networks:pan-os:12.1.7:h1:*:*:*:*:*:*
Palo Alto NetworksPrisma Access--

II. Public POCs for CVE-2026-0283

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III. Intelligence Information for CVE-2026-0283

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Vendor Advisories for CVE-2026-0283 (1)

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

CVE-2026-02866.0 MEDIUMPAN-OS: Authenticated Command Injection in CLI
CVE-2026-02844.7 MEDIUMPAN-OS: XML Injection Vulnerability in Large Scale VPN (LSVPN)
CVE-2026-02874.6 MEDIUMPAN-OS: Denial of Service Vulnerabilities in Network Traffic Processing
CVE-2026-02854.4 MEDIUMPAN-OS: Server-Side Request Forgery Vulnerability in Management Web Interface
CVE-2026-02801.7 LOWPAN-OS: IPv6 Firewall Policy Bypass
CVE-2026-02811.7 LOWPAN-OS: Information Disclosure Vulnerability in Management Web Interface
CVE-2026-02821.2 LOWPAN-OS: File Deletion Vulnerability in Management Web Interface
CVE-2026-02790.4 LOWPAN-OS: Multiple Cross-Site Scripting (XSS) Vulnerabilities
CVE-2026-0275Prisma Browser: Local Privilege Escalation on macOS
CVE-2026-0276Cortex XDR Broker VM: Privilege Escalation (PE) Vulnerability
CVE-2026-0277Prisma Access Agent: Improper Certificate Validation on iOS
CVE-2026-0278Prisma Access Agent: Multiple DLP Policy Bypass Vulnerabilities on Windows

IV. Related Vulnerabilities

Same product: Cloud NGFW
Same vendor: Palo Alto Networks
Same weakness: CWE-306

V. Comments for CVE-2026-0283

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