Palo Alto Networks on Wednesday warned that threat actors are exploiting the recently patched PHP2Shell vulnerabilities against publicly-accessible management interfaces.

“Active exploitation has been observed targeting the Palo Alto Networks management interface exposed to the internet,” the network security company said in an update to its advisory.

The vulnerabilities, tracked as CVE-2026–109618 and CVE-2026–109619 (CVSS scores: 9.2), allow attackers to achieve unauthenticated remote code execution on systems running affected versions of PHP. The issues were patched upstream by the PHP Foundation on October 21, 2026, in versions 8.5.12, 8.4.27, 8.3.36, and 8.2.35.