CVE-2016-4606

Name: CVE-2016-4606
Creator: NVD / NIST
Published: 2020-02-21T02:15:10.97+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.32%

Last modified Jun 17, 2026

CVE-2016-4606 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Curl before 7.49.1 in Apple OS X before macOS Sierra prior to 10.12 allows remote or local attackers to execute arbitrary code, gain sensitive information, cause denial-of-service conditions, bypass security restrictions, and perform unauthorized actions. This may aid in other attacks.. EPSS estimates a 3.32% chance of exploitation in the next 30 days.

Description

Curl before 7.49.1 in Apple OS X before macOS Sierra prior to 10.12 allows remote or local attackers to execute arbitrary code, gain sensitive information, cause denial-of-service conditions, bypass security restrictions, and perform unauthorized actions. This may aid in other attacks.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

3.32%

87.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Haxx	Curl	< 7.49.1

References

http://www.securityfocus.com/bid/93055Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036858Third Party Advisory, VDB Entry
https://lists.apple.com/archives/security-announce/2016/Sep/msg00006.htmlMailing List, Third Party Advisory
http://www.securityfocus.com/bid/93055Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036858Third Party Advisory, VDB Entry
https://lists.apple.com/archives/security-announce/2016/Sep/msg00006.htmlMailing List, Third Party Advisory

Timeline

Published: Feb 21, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-4606?

How severe is CVE-2016-4606?

CVE-2016-4606 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.32% probability of exploitation in the next 30 days.

How do I fix CVE-2016-4606?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST