CVSS v3
7.5
HIGH
EPSS Score
14.5%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
When curl retrieves an HTTP response, it stores the incoming headers so that they can be accessed later via the libcurl headers API. However, curl did not have a limit in how many or how large headers it would accept in a response, allowing a malicious server to stream an endless series of headers and eventually cause curl to run out of heap memory.
When curl retrieves an HTTP response, it stores the incoming headers so that they can be accessed later via the libcurl headers API. However, curl did not have a limit in how many or how large headers it would accept in a response, allowing a malicious server to stream an endless series of headers and eventually cause curl to run out of heap memory.
Active exploitation of CVE-2023-38039 has not been confirmed. The EPSS score is 14.5%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2023-38039 has a CVSS v3 base score of 7.5 (HIGH severity).
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Ranked by exploit probability (EPSS).