CVE-2016-8617: Haxx Curl

High severity, CVSS 7.0. EPSS: 0.6% chance of exploitation in the next 30 days.

The base64 encode function in curl before version 7.51.0 is prone to a buffer being under allocated in 32bit systems if it receives at least 1Gb as input via `CURLOPT_USERNAME`.

Affected products

• Haxx Curl: before 7.51.0 (fixed in 7.51.0)

Published 2018-07-31. Last modified 2026-06-17.