CVE-2025-4227: Palo Alto Networks GlobalProtect App · Cleartext Transmission
Affects Palo Alto Networks GlobalProtect AppSource CVE Database V5
Not known to be exploited · CVSS 1.0 Low.
Data as of 26 Oct 2026, 12:55 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/AU:N/R:U/V:D/RE:L/U:GreenExploitation evidence
Disclosed: evidence found.
CVE published 13 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Palo Alto Networks GlobalProtect App | Affected
| Fixed in– |
AI-suggested
To mitigate CVE-2025-4227 effectively, European organizations should implement the following specific measures beyond generic patching advice: 1) Network Segmentation: Restrict physical access to sensitive network segments where GlobalProtect clients operate, especially in corporate environments, to reduce the risk of rogue device injection. 2) Enhanced Monitoring: Deploy network intrusion detection systems (NIDS) capable of identifying anomalous devices or packet interception attempts on local networks. 3) User Awareness: Educate users about the risks of connecting to untrusted or public Wi-Fi networks and encourage the use of personal hotspots or trusted VPN gateways. 4) Device Hardening: Enforce endpoint security policies that limit the ability to connect to insecure networks or require additional authentication factors when connecting via GlobalProtect. 5) Configuration Review: Audit GlobalProtect Endpoint Traffic Policy Enforcement settings to ensure strict encryption policies are enabled and verify that fallback or recovery mechanisms are functioning correctly. 6) Physical Security Controls: Strengthen physical security in office environments to prevent unauthorized devices from connecting to internal networks. 7) Network Access Control (NAC): Implement NAC solutions to authenticate and authorize devices before granting network access, reducing rogue device risks. 8) Incident Response Preparedness: Develop procedures to quickly detect and respond to potential interception incidents, including packet capture analysis and endpoint forensics. These targeted actions will reduce the attack surface and exposure window associated with this vulnerability.
Description
An improper access control vulnerability in the Endpoint Traffic Policy Enforcement https://docs.paloaltonetworks.com/globalprotect/6-0/globalprotect-app-new-features/new-features-released-in-gp-app/endpoint-traffic-policy-enforcement feature of the Palo Alto Networks GlobalProtect™ app allows certain packets to remain unencrypted instead of being properly secured within the tunnel. An attacker with physical access to the network can inject rogue devices to intercept these packets. Under normal operating conditions, the GlobalProtect app automatically recovers from this interception within one minute.