CVE-2022-31627
CVSS v3
9.8
CRITICAL
EPSS Score
2.1 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In PHP versions 8.1.x below 8.1.8, when fileinfo functions, such as finfo_buffer, due to incorrect patch applied to the third party code from libmagic, incorrect function may be used to free allocated memory, which may lead to heap corruption.
Technical details
- Published
- 2022-07-28
Frequently asked questions
What is CVE-2022-31627?
In PHP versions 8.1.x below 8.1.8, when fileinfo functions, such as finfo_buffer, due to incorrect patch applied to the third party code from libmagic, incorrect function may be used to free allocated memory, which may lead to heap corruption.
Is CVE-2022-31627 actively exploited?
Active exploitation of CVE-2022-31627 has not been confirmed. Its EPSS score was 2.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2022-31627?
CVE-2022-31627 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2022-31627 affecting your environment?
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