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ONE Sentinel

securitySecurity/THREATS/CRIT

Palo Alto GlobalProtect VPN auth bypass flaw now exploited in attacks

sourceBleeping Computer
calendar_todayMay 30, 2026
schedule1 min read
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EXECUTIVE SUMMARY

Palo Alto's GlobalProtect VPN Flaw Under Active Exploitation

Summary

Palo Alto Networks has issued a warning regarding active exploitation of a vulnerability in their PAN-OS GlobalProtect VPN. The flaw, identified as CVE-2026-0257, allows attackers to bypass authentication and potentially breach corporate networks.

Key Points

  • The vulnerability is tracked as CVE-2026-0257.
  • It affects the PAN-OS GlobalProtect VPN, a product of Palo Alto Networks.
  • Hackers are actively exploiting this flaw to target corporate networks.
  • The flaw allows for authentication bypass, posing a significant security risk.

Analysis

The active exploitation of CVE-2026-0257 highlights the critical nature of this vulnerability, as it allows unauthorized access to corporate networks. Given the widespread use of GlobalProtect VPN in securing remote connections, this flaw poses a significant threat to organizations relying on this technology for secure communications.

Conclusion

IT professionals should prioritize patching systems affected by CVE-2026-0257 to mitigate the risk of unauthorized access. Regularly monitoring for updates and advisories from Palo Alto Networks is essential to maintain network security.