CVE-2025-1220
LOWCVSS v3
3.7
LOW
EPSS Score
0.2%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 7/13/2025
- Last Modified
- 11/4/2025
Frequently Asked Questions
What is CVE-2025-1220?
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.
Is CVE-2025-1220 actively exploited?
Active exploitation of CVE-2025-1220 has not been confirmed. The EPSS score is 0.2%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2025-1220?
CVE-2025-1220 has a CVSS v3 base score of 3.7 (LOW severity), with vector string 3.1.
Is CVE-2025-1220 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.