Vulnerability Description
In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 some functions like fsockopen() lack validation that the hostname supplied does not contain null characters. This may lead to other functions like parse_url() treat the hostname in different way, thus opening way to security problems if the user code implements access checks before access using such functions.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Php | Php | >= 8.1.0, < 8.1.33 |
Related Weaknesses (CWE)
References
- https://github.com/php/php-src/security/advisories/GHSA-3cr5-j632-f35rExploitVendor Advisory
- http://www.openwall.com/lists/oss-security/2025/07/11/4
- https://lists.debian.org/debian-lts-announce/2025/07/msg00017.html
- https://github.com/php/php-src/security/advisories/GHSA-3cr5-j632-f35rExploitVendor Advisory
FAQ
What is CVE-2025-1220?
CVE-2025-1220 is a vulnerability with a CVSS score of 3.7 (LOW). In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 some functions like fsockopen() lack validation that the hostname supplied does not contain null char...
How severe is CVE-2025-1220?
CVE-2025-1220 has been rated LOW with a CVSS base score of 3.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-1220?
Check the references section above for vendor advisories and patch information. Affected products include: Php Php.