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CVE-2026-0277— Prisma Access Agent: Improper Certificate Validation on iOS

Quick assessment

Affected
Palo Alto Networks Prisma Access Agent
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 Prisma Access Agent是美国Palo Alto Networks公司的代理接入安全客户端。 Palo Alto Networks Prisma Access Agent 26.2.1之前版本存在加密问题漏洞，该漏洞源于证书验证不当，可能导致攻击者执行中间人攻击以拦截VPN流量。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.20% · P10

Affected Version Matrix 2

VendorProduct Version RangeStatus
Palo Alto Networks Prisma Access Agent < 26.2.1 affected
All unaffected
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I. Basic Information for CVE-2026-0277

Vulnerability Information
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Vulnerability Title
Prisma Access Agent: Improper Certificate Validation on iOS
Source: CVE Program / CVE List V5
Vulnerability Description
An improper certificate validation vulnerability in the Prisma® Access Agent for iOS enables an attacker to perform a man-in-the-middle (MitM) attack to intercept VPN traffic. The Prisma Access Agent on Windows, macOS, Linux, Android and ChromeOS are not affected.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Palo Alto Networks Prisma Access Agent 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Palo Alto Networks Prisma Access Agent是美国Palo Alto Networks公司的代理接入安全客户端。 Palo Alto Networks Prisma Access Agent 26.2.1之前版本存在加密问题漏洞，该漏洞源于证书验证不当，可能导致攻击者执行中间人攻击以拦截VPN流量。
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 Prisma Access Agent 0 ~ 26.2.1 -
Palo Alto Networks Prisma Access Agent - -

II. Public POCs for CVE-2026-0277

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III. Intelligence Information for CVE-2026-0277

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Vendor Advisories for CVE-2026-0277 (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-2026-0280 1.7 LOW PAN-OS: IPv6 Firewall Policy Bypass
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-2026-0278 Prisma Access Agent: Multiple DLP Policy Bypass Vulnerabilities on Windows

IV. Related Vulnerabilities

Same product: Prisma Access Agent
Same vendor: Palo Alto Networks
Same weakness: CWE-295