CVE-2018-3739
CVSS v3
9.1
CRITICAL
EPSS Score
2.0 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
https-proxy-agent before 2.1.1 passes auth option to the Buffer constructor without proper sanitization, resulting in DoS and uninitialized memory leak in setups where an attacker could submit typed input to the 'auth' parameter (e.g. JSON).
Technical details
- Published
- 2018-06-07
Frequently asked questions
What is CVE-2018-3739?
https-proxy-agent before 2.1.1 passes auth option to the Buffer constructor without proper sanitization, resulting in DoS and uninitialized memory leak in setups where an attacker could submit typed input to the 'auth' parameter (e.g. JSON).
Is CVE-2018-3739 actively exploited?
Active exploitation of CVE-2018-3739 has not been confirmed. Its EPSS score was 2.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-3739?
CVE-2018-3739 has a CVSS v3 base score of 9.1 (CRITICAL severity).
Is CVE-2018-3739 affecting your environment?
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