CVE-2015-3144

What it is

The fix_hostname function in cURL and libcurl 7.37.0 through 7.41.0 does not properly calculate an index, which allows remote attackers to cause a denial of service (out-of-bounds read or write and crash) or possibly have other unspecified impact via a zero-length host name, as demonstrated by "http://:80" and ":80."

At a glance

Exploitability

Can be exploited over the network with a login. High risk of data exposure, data tampering, service disruption.

Exploit odds

10.5% chance of exploitation in the next 30 days (EPSS). Higher than most.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2015-04-24 14:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:25 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 10.5% in the next 30 days (EPSS).
• Severity: 9.0 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2015-04-24 14:59 UTC

Last modified

2026-06-17 00:25 UTC

Exploit probability

10.5% · EPSS, next 30 days

Weakness

CWE-119 · Buffer errors

Record status

Modified

Affected

• Oracle MySQL Enterprise Monitor ≤ 2.3.20
• Oracle MySQL Enterprise Monitor ≤ 3.0.22
• Haxx Curl 7.37.0
• Haxx Curl 7.37.1
• Haxx Curl 7.38.0
• Haxx Curl 7.39.0
• Haxx Curl 7.40.0
• Haxx Curl 7.41.0

Attack profile CVSS 2.0 · 9.0

Attack vector

Network

Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2015-3144.md and follow it. Check whether this project is affected by CVE-2015-3144. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

Copy as ticket · More options · Status badge