cve 2025 1220

CVE-2025-1220 is a PHP vulnerability involving null byte termination in hostnames, where functions like fsockopen fail to validate embedded NUL characters. This parsing flaw can lead to hostname validation bypass. On WindowsForum.com, discussions focus on Microsoft's Azure Linux product family being potentially affected, as Azure Linux includes the vulnerable open-source PHP library. The coverage clarifies that Microsoft's MSRC statement is a product-scoped attestation for Azure Linux, not an exclusive guarantee that other Microsoft products are unaffected. The tag covers the technical details of the vulnerability, its impact on Azure Linux, and the broader implications for PHP hostname parsing security.