HIGH

CVE-2020-7062

CVSS v3

7.5

HIGH

EPSS Score

1.2%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0 (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist and encounter null pointer dereference, which would likely lead to a crash.

Technical details

Published
2/27/2020

Frequently asked questions

What is CVE-2020-7062?

In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0 (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist and encounter null pointer dereference, which would likely lead to a crash.

Is CVE-2020-7062 actively exploited?

Active exploitation of CVE-2020-7062 has not been confirmed. The EPSS score is 1.2%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-7062?

CVE-2020-7062 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2020-7062 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.