CVE-2014-8151

What it is

The darwinssl_connect_step1 function in lib/vtls/curl_darwinssl.c in libcurl 7.31.0 through 7.39.0, when using the DarwinSSL (aka SecureTransport) back-end for TLS, does not check if a cached TLS session validated the certificate when reusing the session, which allows man-in-the-middle attackers to spoof servers via a crafted certificate.

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

1.1% chance of exploitation in the next 30 days (EPSS).

Fix

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

Timeline

1. 2015-01-15 15:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:16 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 1.1% in the next 30 days (EPSS).
• Severity: 5.8 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2015-01-15 15:59 UTC

Last modified

2026-06-17 00:16 UTC

Exploit probability

1.1% · EPSS, next 30 days

Record status

Modified

Affected

• Apple Mac Os X ≤ 10.10.4
• Haxx Libcurl 7.31.0
• Haxx Libcurl 7.32.0
• Haxx Libcurl 7.33.0
• Haxx Libcurl 7.34.0
• Haxx Libcurl 7.35.0
• Haxx Libcurl 7.36.0
• Haxx Libcurl 7.37.0

Attack profile CVSS 2.0 · 5.8

Attack vector

Network

Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

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-2014-8151.md and follow it. Check whether this project is affected by CVE-2014-8151. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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